The perimeter of a rectangle whose one side measures 12 cm and diagona

1.	The perimeter of a rectangle whose one side measures 12 cm and diagonal is 20 cm is -1 point64 cm44 cm56 cm52 cmfor class 7
Answer» i) LENGTH = 24.5 m Breadth = 18 m ∴ Area of the rectangle = Length × Breadth = 24.5 m × 18 m = 441 m2 (ii) Length = 12.5 m Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm] ∴ Area of the rectangle = Length × Breadth = 12.5 m × 0.8 m = 10 m2

The perimeter of a rectangle whose one side measures 12 cm and diagonal is 20 cm is -1 point64 cm44 cm56 cm52 cmfor class 7

Answer»

i) LENGTH = 24.5 m

Breadth = 18 m

∴ Area of the rectangle = Length × Breadth

= 24.5 m × 18 m

= 441 m2

(ii) Length = 12.5 m

Breadth = 8 dm = (8 × 10) = 80 cm = 0.8 m [since 1 dm = 10 cm and 1 m = 100 cm]

∴ Area of the rectangle = Length × Breadth

= 12.5 m × 0.8 m

= 10 m2