All the solutions provided in McGraw Hill My Math Grade 4 Answer Key PDF Chapter 13 Check My Progress will give you a clear idea of the concepts.
McGraw-Hill My Math Grade 4 Chapter 13 Check My Progress Answer Key
Check My Progress Page No.(837 – 838)
Vocabulary Check
The distance around a closed figure is called the perimeter.
Question 1.
Which of the following is a formula for finding the perimeter of a rectangle? Circle the correct response.
Concept Check
Find each perimeter.
Question 2.
P = ______________
Answer: 14 cm.
Explanation:
The perimeter of a rectangle is, 2(l+w)
P = 2(5+2)
P= 2(7)
P = 14 cm.
Question 3.
P = ______________
Answer: 8 inches
Explanation:
The perimeter of a square is, 4a or 4x side.
P = 4(2)
P = 8 inches.
Question 4.
P = ______________
Answer: 24 yd
Explanation:
The Perimeter of a square is, 4a
P = 4(6)
P = 24 yd.
Question 5.
P = ______________
Answer: 24 ft
Explanation:
The perimeter of a rectangle is, 2(l+w)
P = 2(8+4)
P=2(12)
P = 24ft.
Problem Solving
Question 6.
Byron made a drawing of his room. His drawing is shown. What is the perimeter of Byron’s room?
Answer: 54 ft
The room looks like a rectangle.
So, the perimeter of a rectangle, 2(l+w)
P = 2(15+12)
P = 2(27)
P = 54 ft.
Question 7.
What is the perimeter of a square with side lengths of 4 inches?
Answer: The perimeter of a square is 4*a. So, Perimeter = 4×4 = 16 inches.
Question 8.
Felicia is building a rectangular garden. The garden will have a perimeter of 20 meters. Give three pairs of possible side lengths.
Answer: The three pairs of possible side lengths are (16, 4), (12, 8), and (7,13).
Explanation: The perimeter of a rectangular garden is 2(l+w).
Question 9.
A rectangular poster has a length of 24 inches, and its width is 12 inches. What is the perimeter of the poster?
Answer: The perimeter of a rectangular poster is 2(l+w).
Perimeter = 2(24+12) = 2(36)
P = 72 inches.
Test Practice
Question 10.
Which of the following is the perimeter of the square?
(A) 10 centimeters
(B) 15 centimeters
(C) 20 centimeters
(D) 25 centimeters
Answer: C
Explanation: We will find the perimeter of the square.
The formula for the perimeter of a square is 4 x side.
Based on the option, the multiply of 4 is 4 x 5 = 20 cm.
one side of a square is 5. All 4 sides of the square are 20.
So, option C is correct.