Question

17. A rectangle with length = 18 cm and breadth = 12 cm has same perimeter as that of a
regular pentagon. Find the side of the pentagon.
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Answer 1

Answer:

length =18cm

breadth = 12 cm

perimeter =2(18+12)

= 2(30)

= 60 cm

side of pentagon = 60/5

= 12 cm

Step-by-step explanation:

As we know regular pentagon have same size.

Answer 2

Solution:

12 cm is the side of the pentagon.

Step-by-step explanation:

Given:

A rectangle with length = 18 cm and breadth = 12 cm has same perimeter as that of a

regular pentagon.

Find:

Find the side of the pentagon.

Given:

1. Length = 18 cm.
2. Breadth = 12 cm.

Let us assume "L" as length and "B" as breadth.

Formula:

Perimeter of a rectangle => 2 (L + B)

Using formula:

→ p = 2 × 18 + 12

→ p = (2 × 30)

→ p= 60 cm

→ 5 a = 60

→ a = 60/5

→ a = 12 cm

Therefore, 12 cm is the side of the pentagon.