Length of the rectangle is 10 cm and its breadth is 8 cm and one squar

1.	Length of the rectangle is 10 cm and its breadth is 8 cm and one square is side 9 cm. Whose perimetre is more? By how much?
Answer» Perimeter of a rectangle = 2 x length + 2 x breadth = 2 x 10 + 2 x 8 = 20 + 16 = 36 cm ……… (i) Perimeter of a square = 4 x length of side = 4 x 9 36 cm …… (ii) From (i) and (ii) perimeter of both is equal. ∴ perimeter of both is equal

Length of the rectangle is 10 cm and its breadth is 8 cm and one square is side 9 cm. Whose perimetre is more? By how much?

Answer»

Perimeter of a rectangle

= 2 x length + 2 x breadth

= 2 x 10 + 2 x 8

= 20 + 16

= 36 cm ……… (i)

Perimeter of a square

= 4 x length of side

= 4 x 9

36 cm …… (ii)

From (i) and (ii) perimeter of both is equal.

∴ perimeter of both is equal