Eureka Math Grade 3 Module 7 Lesson 28 Answer Key

Engage NY Eureka Math 3rd Grade Module 7 Lesson 28 Answer Key

Eureka Math Grade 3 Module 7 Lesson 28 Pattern Sheet Answer Key

Multiply.
Engage NY Math 3rd Grade Module 7 Lesson 28 Pattern Sheet Answer Key p 1
multiply by 8 (6–10)
Answer:
Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Pattern Sheet Answer Key

Explanation:
8 × 6 = 48
8 × 7 = 56
8 × 8 = 64
8 × 9 = 72
8 × 10 = 80.

Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key

Question 1.
Gia measures her rectangular garden and finds the length is 9 yards and the width is 7 yards.
a. Estimate to draw Gia’s garden, and label the side lengths.
b. What is the area of Gia’s garden?
c. What is the perimeter of Gia’s garden?
Answer:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-1a

b. Area of Gia’s rectangular garden =  63 square yards.
c. Perimeter of Gia’s rectangular garden = 32 yards.

Explanation:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-1a

b. Length of Gia’s rectangular garden = 9 yards.
Width of Gia’s rectangular garden = 9 yards.
Area of Gia’s rectangular garden =  Length × Width
= 9 yards × 7 yards
= 63 square yards.

c. Length of Gia’s rectangular garden = 9 yards.
Width of Gia’s rectangular garden = 9 yards.
Perimeter of Gia’s rectangular garden =  2 ( Length + Width )
= 2 ( 9 yards + 7 yards )
= 2 × 16 yards
= 32 yards.

Question 2.
Elijah draws a square that has side lengths of 8 centimeters.
a. Estimate to draw Elijah’s square, and label the side lengths.
b. What is the area of Elijah’s square?
c. What is the perimeter of Elijah’s square?
d. Elijah connects three of these squares to make one long rectangle. What is the perimeter of this rectangle?
Answer:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-2a

b. Area of the Elijah’s square = 64 square cm.
c. Perimeter of the Elijah’s square = 32 cm.
d. Perimeter of the rectangle = 24cm.

Explanation:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-2a

b. Length of  side of the Elijah’s square = 8cm
Area of the Elijah’s square = Side × Side
= 8cm × 8cm
= 64 square cm.

c. Length of  side of the Elijah’s square = 8cm
Perimeter of the Elijah’s square =  4 × Side
= 4 × 8cm
= 32 cm.

d. Elijah connects three of these squares to make one long rectangle.
=> Length of  side of the Elijah’s square = 8cm
=> 3 × 8cm
=> 24cm.
Perimeter of the rectangle = 24cm.

Question 3.
The area of Mason’s rectangular painting is 72 square inches. The width of the painting is 8 inches.
a. Estimate to draw Mason’s painting, and label the side lengths.
b. What is the length of the painting?
c. What is the perimeter of Mason’s painting?
d. Mason’s mom hangs the painting on a wall that already has two of Mason’s other paintings. The areas of the other paintings are 64 square inches and 81 square inches. What is the total area of the wall that is covered with Mason’s paintings?

Answer:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-3a
b. Length of the Mason’s rectangular painting = 9 inches.
c. Perimeter of the Mason’s rectangular painting = 34 inches.
d. The total area of the wall that is covered with Mason’s paintings = 217 square inches.

Explanation:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-3a
b. Area of Mason’s rectangular painting = 72 square inches
Width of the Mason’s rectangular painting = 8 inches.
Length of the Mason’s rectangular painting = ??
Area of Mason’s rectangular painting = Length × Width
=> 72 square inches = Length × 8 inches
=> 72 square inches ÷ 8 inches = Length
=> 9 inches = Length

c. Length of the Mason’s rectangular painting = 9 inches
Width of the Mason’s rectangular painting = 8 inches.
Perimeter of the Mason’s rectangular painting =2 ( Length + Width )
= 2 ( 9 inches + 8 inches )
= 2 × 17 inches
= 34 inches.

d. Area of Mason’s rectangular painting = 72 square inches
The areas of the other paintings are 64 square inches and 81 square inches.
The total area of the wall that is covered with Mason’s paintings = Area of Mason’s rectangular painting + Areas of the other paintings
= 72 square inches + 64 square inches + 81 square inches
= 136 square inches + 81 square inches
= 217 square inches.

Question 4.
The perimeter of Jillian’s rectangular bedroom is 34 feet. The length of her bedroom is 9 feet.
a. Estimate to draw Jillian’s bedroom, and label the side lengths.
b. What is the width of Jillian’s bedroom?
c. What is the area of Jillian’s bedroom?
d. Jillian has a 4-foot by 6-foot rug in her room. What is the area of the floor that is not covered by the rug?
Answer:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-4a
b. Width of Jillian’s bedroom = 8 feet.
c. Area of Jillian’s bedroom = 72 square feet.
d. Area of the floor that is not covered by the rug = 48 square feet.

Explanation:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Problem Set Answer Key-4a
b. Perimeter of Jillian’s bedroom = 34 feet
Length of Jillian’s bedroom = 9 feet.
Width of Jillian’s bedroom = ??
Perimeter of Jillian’s bedroom = 2 ( Length + Width )
=> 34 feet = 2 ( 9 feet + Width )
=> 34 feet = 18 feet + 2 Width
=> 34 feet – 18 feet = 2 Width
=> 16 feet = 2 Width
=> 16 feet ÷ 2 = Width
=> 8 feet = Width.

c. Length of Jillian’s bedroom = 9 feet.
Width of Jillian’s bedroom = 8 feet
Area of Jillian’s bedroom = Length × Width
= 9 feet × 8 feet
= 72 square feet.

d. Jillian has a 4-foot by 6-foot rug in her room.
Length of the rug = 6 foot
Width of the rug =  4 foot
Area of the rug = Length × Width
= 6 foot × 4 foot
= 24 square foot.
Area of Jillian’s bedroom = 72 square feet.
Area of the floor that is not covered by the rug = Area of Jillian’s bedroom  –  Area of the rug
= 72 square feet – 24 square foot
= 48 square feet.

Eureka Math Grade 3 Module 7 Lesson 28 Exit Ticket Answer Key

Jennifer measures her rectangular sandbox and finds the is length 8 feet and the width is 6 feet.
a. Estimate to draw Jennifer’s sandbox, and label the side lengths.
b. What is the area of Jennifer’s sandbox?
c. What is the perimeter of Jennifer’s sandbox?
Answer:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Exit Ticket Answer Key-a
b. Area of the Jennifer rectangular sandbox = 48 square feet.
c. Perimeter of Jennifer’s sandbox = 28 feet.

Explanation:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Exit Ticket Answer Key-a

b. Length of the Jennifer rectangular sandbox = 8 feet
Width of the Jennifer rectangular sandbox = 6 feet
Area of the Jennifer rectangular sandbox = Length × Width
= 8 feet × 6 feet
= 48 square feet.

c. Length of the Jennifer rectangular sandbox = 8 feet
Width of the Jennifer rectangular sandbox = 6 feet
Perimeter of Jennifer’s sandbox = 2 ( Length + Width )
= 2 ( 8 feet + 6 feet )
= 2 × 14 feet
= 28 feet.

Eureka Math Grade 3 Module 7 Lesson 28 Homework Answer Key

Question 1.
Carl draws a square that has side lengths of 7 centimeters.
a. Estimate to draw Carl’s square, and label the side lengths.
b. What is the area of Carl’s square?
c. What is the perimeter of Carl’s square?
d. Carl draws two of these squares to make one long rectangle. What is the perimeter of this rectangle?
Answer:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Homework Answer Key-1a

b. Area of Carl’s square = 49 square cm.
c. Perimeter of Carl’s square = 28 cm.
d. Perimeter of this rectangle = 56cm.

Explanation:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Homework Answer Key-1a

b. Length of the side of Carl’s square = 7 cm
Area of the Carl’s square = Side × Side
= 7cm × 7cm
= 49 square cm.

c. Length of the side of Carl’s square = 7 cm
Perimeter of Carl’s square = 4 × Side
= 4 × 7cm
= 28 cm.

d. Carl draws two of these squares to make one long rectangle.
Length of the rectangle = 7cm + 7cm = 14cm
Width of the rectangle = 7cm + 7cm = 14cm
Perimeter of this rectangle = 2 ( Length + Width )
= 2 ( 14cm + 14cm )
= 2 × 28 cm.
=> 56 cm.

Question 2.
Mr. Briggs puts food for the class party on a rectangular table. The table has a perimeter of 18 feet and a width of 3 feet.
a. Estimate to draw the table, and label the side lengths.
b. What is the length of the table?
c. What is the area of the table?
d. Mr. Briggs puts three of these tables together side by side to make 1 long table. What is the area of the long table?
Answer:
a. Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Homework Answer Key-2a

b. Length of the Mr. Briggs table = 6 feet.
c. Area of the Mr. Briggs table = 18 square feet.
d. The area of the long table = 54 square feet.

Explanation:
a.  Engage-NY-Eureka-Math-3rd-Grade-Module-7-Lesson-28-Answer-Key-Eureka Math Grade 3 Module 7 Lesson 28 Homework Answer Key-2a

b. Perimeter of the Mr. Briggs table = 18 feet
Length of the  Mr. Briggs table = ??
Width of the  Mr. Briggs table = 3 feet
Perimeter of the Mr. Briggs table = 2 ( Length + Width )
= 18 feet = 2 ( Length + 3 feet )
= 18 feet = 2 Length + 6 feet
= 18 feet – 6 feet = 2 Length
= 12 feet = 2 Length
= 12 feet ÷ 2 = Length
= 6 feet = Length.

c. Length of the Mr. Briggs table = 6 feet
Width of the Mr. Briggs table = 3 feet
Area of the Mr. Briggs table = Length × Width
= 3 feet × 6 feet
= 18 square feet.

d. Mr. Briggs puts three of these tables together side by side to make 1 long table.
Area of the Mr. Briggs table = 18 square feet.
The area of the long table = 3 × 18 square feet.
= 54 square feet.

Leave a Comment

Scroll to Top
Scroll to Top