We included HMH Into Math Grade 4 Answer Key PDF Module 9 Review to make students experts in learning maths.
HMH Into Math Grade 4 Module 9 Review Answer Key
Vocabulary
base
height
Question 1.
Draw and label a rectangle using the terms in the vocabulary box.
Answer:
Concepts and Skills
Question 2.
Use Tools Max is marking off a rectangular section of the gym floor to practice bowling. The section has an area of 48 square meters and a length of 8 meters.
What is the width? Tell what strategy or tool you will use to answer the question, explain your choice, and then find the width.
Answer:
Given,
Area of Section = 48 square meters
Length = 8 meters
We know, Area of Rectangle = Length X Width
So, 48 = 8 X Width
Width = 48/8 = 6
Therefore, Width of the section is 6 meters.
Question 3.
What is the area of the shaded part of the rectangle?
A. 31 sq yd
B. 53 sq yd
C. 59 sq yd
D. 109 sq yd
Answer:
B. 53 sq yd
Total area = Length X Width = 12 x 7 = 84 square yards
Area of small section = Lenth X Width = 2 X 3 = 6 square yards
Area of large section = Length X Width = 5 X 5 = 25 square yards
Area of shaded part = Total area – area of small section and large section
= 84 – ( 6 + 25 ) = 53
Therefore, Area of shaded part = 53 Square yards
Question 4.
Shana is building a deck around a tree. She will cut a square space for the tree that has a side length of 3 feet. The deck will be a rectangle that measures 10 feet by 12 feet. What is the area of the deck?
__________
Answer:
Total area of deck = Length X Width = 10 X 12 =120 square feet
Area of square space = Side X Side = 3 X 3 = 9 square feet
Area of remaining deck = 120 – 9 = 111 square feet
Therefore, area of Deck = 111 square feet.
Find the area of the shaded part of the figure.
Question 5.
Area = ____
Answer:
Area of shaded part = Base X Height = 6 X 14 = 84 square cm
Question 6.
Area = ____
Answer:
Area of top portion = Base X Height = 2 X 6 = 12 square feet
Area of bottom portion = Base X Height = 5 X 3 = 15 Square feet
Total Area = 12 + 15 = 27 square feet.
Question 7.
Area = ____
Answer:
Area of Square = Side X Side = 5 X 5 = 25 Square inches.
Question 8.
Area = ____
Answer:
Total area = Base X Height = 6 X 8 = 48 Square yards
Unshaded Area = Base X Height = 3 X 4 = 12 Square yards
Remaining area = 48 – 12 = 36 square yards
Therefore, Total area = 36 square yards.
Question 9.
Use the perimeter formula, P = 2 × 1 + 2 × w, to find the unknown measure.
A. n = 3 m
B. n = 4 m
C. n = 42 m
D. n = 360 m
Answer:
A. n = 3 m
Given, perimeter = 30m
From perimeter formula, 2 X (n + 12m) = 30m
n + 12m = 15m
n = 15m – 12m = 3m
Therefore, n = 3m