Question

Match the following:

Shapes	Perimeter
(A)	(i) 10
(B)	(ii) 18
(C)	(iii) 20
(D)	(iv) 25

Answer 1

Shapes	Perimeter
(A)	(iii) 20
(B)	(iii) 20
(C)	(ii) 18
(D)	(i) 10

Explanation:

(A) We know that,

Perimeter of a rectangle = 2 × (Length + Breadth)

Here, length = 6 and breadth = 4

∴ Perimeter of a rectangle = 2 × (6 + 4)

= 2 × 10

= 20

(B) Here, side = 5

∴ Perimeter of a square = 4 × Side  ...[∵ In square all sides are equal]

= 4 × 5

= 20  

(C) Here, side = 6

∴ Perimeter of an equilateral triangle = 3 × Length of a side

= 3 × 6

= 18
(D) Given sides are 4, 4 and 2.

∴ Perimeter of an isosceles triangle = Sum of all sides

= 4 + 4 + 2

= 10