Question

8. If the length of a rectangle is 30 cm and its breadth is 20 cm, then its area is sq. cm. 9. If the length of each side of a square is 8 cm, then its area is sq. cm. 10. If the length of each side of a square is cm. 15 cm, then its perimeter is​

Answer 1

7. If the length of a rectangle is 30 cm and its breadth is 20 cm, then its area is sq. cm.

Given :-

• Length and breadth of Rectangle is 30 and 20 cm

To Find :-

• Area of Rectangle

Solution :-

→ Area of Rectangle = L × B

→ Area of Rectangle = 30 × 20

→ Area of Rectangle = 600 sq. cm

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8. If the length of each side of a square is 8 cm, then its area is sq. cm.

Given :-

• Length of each side of square is 8 cm

To Find :-

• Area of Square

Solution :-

→ Area of Square = Side × Side

→ Area of Square = 8 × 8

→ Area of Square = 64 sq. cm

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9. If the length of each side of a square is cm. 15 cm, then its perimeter is

Given :-

• Length of side of square is 15 cm

To Find :-

• Perimeter of square

Solution :-

→ Perimeter of square = 4 × side

→ Perimeter of square = 4 × 15

→ Perimeter of square = 60 cm

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