Practice with the help of Spectrum Math Grade 5 Answer Key Chapter 8 Lesson 8.4 Calculating Perimeter regularly and improve your accuracy in solving questions.
Spectrum Math Grade 5 Chapter 8 Lesson 8.4 Calculating Perimeter Answers Key
The perimeter is the sum of the sides of a figure.
To find the perimeter, add the length of the sides.
The perimeter of the rectangle is 22 in.
Find the perimeter of each figure.
Question 1.
a.
P = _____________ in.
Answer:
20 in.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the rectangle is 20 in.
b.
P = _____________ yd.
Answer:
19 yd.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the triangle is 19 yd.
c.
P = _____________ ft.
Answer:
32 ft.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of a given above figure is 32 ft.
Question 2.
a.
P = _____________ ft.
Answer:
20 ft.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the triangle is 20 ft.
b.
P = _____________ in.
Answer:
48 in.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the given figure is 48 in.
c.
P = _____________ in.
Answer:
24 in.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the square is 24 in
Question 3.
a.
P = _____________ yd.
Answer:
19 yd.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the figure give is 19 yd.
b.
P = _____________ yd.
Answer:
18 yd.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the rectangle is 18 yd.
c.
P = _____________ yd.
Answer:
12 yd.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the triangle is 12 yd.
Question 4.
a.
P = _____________ ft.
Answer:
22 ft.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the given figure is 22 ft.
b.
P = _____________ in.
Answer:
25 in.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the given figure is 25 in.
c.
P = _____________ ft.
Answer:
40 ft.
Explanation:
To find the perimeter, add the length of the sides.
The perimeter of the octagon is 40 ft.
Find the perimeter of each figure.
Question 1.
a.
P = _____________ m
Answer:
16 m.
Explanation:
To find the perimeter, add the length of the sides.
3 + 5 + 3 + 5 = 16 m
The perimeter of the rectangle is 16 m.
b.
P = _____________ mm
Answer:
10 mm.
Explanation:
To find the perimeter, add the length of the sides.
P = 3 + 4 + 3
P = 10 mm.
The perimeter of the rectangle is 10 mm.
c.
P = _____________ cm
Answer:
20 cm.
Explanation:
To find the perimeter, add the length of the sides.
P = 5 + 9 + 6
P = 20 cm
The perimeter of the triangle is 20 cm.
Question 2.
a.
P = _____________ km
Answer:
18 km.
Explanation:
To find the perimeter, add the length of the sides.
P = 6 + 6 + 6
P = 18 km.
The perimeter of the triangle is 18 km.
b.
P = _____________ cm
Answer:
26 cm.
Explanation:
To find the perimeter, add the length of the sides.
P = 7 + 6 + 7 + 6
P = 26 cm.
The perimeter of the rectangle is 26 cm.
c.
P = _____________ m
Answer:
21 m.
Explanation:
To find the perimeter, add the length of the sides.
P = 7 + 6 + 8
P = 21 m
The perimeter of the triangle is 21 m.
Question 3.
a.
P = _____________ mm
Answer:
82 mm.
Explanation:
To find the perimeter, add the length of the sides.
P = 16 + 15 + 20 + 15 + 16
P = 82 mm
The perimeter of the pentagon is 82 mm.
b.
P = _____________ m
Answer:
50 m.
Explanation:
To find the perimeter, add the length of the sides.
P = 10 + 10 + 5 + 10 + 10
P = 50 m
The perimeter of the hexagon is 50 m.
c.
P = _____________ km
Answer:
96 km.
Explanation:
To find the perimeter, add the length of the sides.
P = 12 + 12 + 12 + 12 + 12 + 12 + 12 + 12
P = 96 km.
The perimeter of the octagon is 96 km.
Question 4.
a.
P = _____________ cm
Answer:
14 cm.
Explanation:
To find the perimeter, add the length of the sides.
P = 4 + 4 + 6
P = 14 cm
The perimeter of the triangle is 14 cm.
b.
P = _____________ m
Answer:
20 m.
Explanation:
To find the perimeter, add the length of the sides.
P = 8 + 7 + 5
P = 20 m.
The perimeter of the triangle is 20 m.
c.
P = _____________ m
Answer:
32 m.
Explanation:
To find the perimeter, add the length of the sides.
P = 8 + 6 + 8 + 10
P = 32 m.
The perimeter of the rectangle is 32 m
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