The circumference of a circle is 132 cm. The area of circle is: Take π = \(\frac{22}{7}\)

Question

Question

This question was previously asked in

SSC CHSL Exam 2023 Tier-I Official Paper (Held On: 08 Aug, 2023 Shift 2)

Answer 1

Given:

The circumference of a circle = 132 cm

Formula used:

Circumference(C) of a circle = 2πr

Area of a circle = πr²

Where, r = radius

Calculation:

According to the question,

C = 2 × 22/7 × r

⇒ 132 = 44r/7

r = 21 cm

Now,

Area of a circle = πr2

⇒ 22/7 × 21 × 21 = 1386 cm²

∴ The area of circle is 1386 cm2.