Question

7. The side of a square field is 75 m. Find its perimeter and area.
8. The perimeter of a room is 18 m. It is 4 m wide. Find its length and area.
9. The perimeter of a square is 40 cm. Find its side and area.
10. A room is 680 cm long and 320 cm wide. It is to be paved with square marble tiles of side 40 cm. How many such tiles will be required?​

Answer 1

Answer:

Ans 7

Area = 5625 sq.m

Perimeter= 300 m

Ans 8

length = 5

area = 20 sq.m

Ans 9

side. 10

area. 100 sq.m

Ans 10

almost 138 tiles

Answer 2

Answer:

7) Perimeter=4×75 m =300 m

area=75×75 m²=5625 m²

8) length=(18/2)-4m= 5 m

area=20 m²

9)side =4 cm

area=16 cm²

10)no. of tiles =136 ( area of room/ area of each tile)

Step-by-step explanation:

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