Question

Find the area of the circle whose perimetre is 1.32 cm.
(A) 0.1365 cm
(B) 1.386 cm
(C) 0.1386 cm
(D) 0.2386 cm
(E) None of these​

Answer 1

Answer:

Hey frnd,

Here is ur ans...

Area of circle = 0.1386 cm^2

Step-by-step explanation:

Given,

Perimeter of circle = 1.32 cm

$2\pi \: r = 1.32 \\ 2(3.14)r = 1.32 \\ 6.28r = 1.32 \\ r = 0.21cm$

Area of circle = ?

$= \pi {r}^{2} \\ = 3.14( {0.21)}^{2} \\ = 0.138 {cm}^{2}$

Thus option c is the right one.

Hope this helps u...