Question

the circumference of circle is 132 M find its area

Answer 1

hiii!!!

here's ur answer...

circumference of the circle = 132m

therefore 2πr = 132m

==> 2 × 22/7 × r = 132m

==> 44/7 × r = 132m

==> r = 132/1 × 7/44

==> r = 3 × 7

==> r = 21m

VERIFICATION :-

circumference of the circle = 2πr

= 2 × 22/7 × 21

= 44 × 3

= 132m

hence verified.

thus the radius of the circle is 21m.

now, area of the circle = πr²

= 22/7 × 21 × 21

= 22 × 3 × 21

= 1386m²

hope this helps..!!

Answer 2

Given:

• Circumference of the circle = 132 m

To Find:

• The area of the circle.

Solution:

• The area of the circle is given by, π$r^2$ → (1)
• We first need to find the radius of the circle and then find the area.
• We have, the circumference of the circle = 132 m
• ⇒ 2πr = 132
• ⇒ 2*22/7*r = 132
• ⇒ r = $\frac{132*7}{22*2} = \frac{924}{44} = 21$
• r = 21 cm
• Substitute the value of r in equation (1) to find the area.
• Area of the circle = 22/7*($21^2$) = 1386 $cm^2$

∴ The area of the circle = 1386 $cm^2$