Question

If the circumference of a circle is 132cm the area of circle is

Answer 1

Answer:

radius of the circle is 132×7/2×22

i.e. 21

then area of the circle is 22×21×21/7

i.e. 1386 cm^2

Answer 2

given

circumfrence of circle = 132 cm

2 π r = 132 cm

2 . 22 / 7 . r = 132 cm

44 / 7 . r = 132

r = 132 . 7 / 44

r = 924 / 44

r = 21 cm

area of circle = π r ^2

= 22 / 7 ( 21 ) ^2

= 22/ 7 ( 441 )

= 9702 / 7

= 1386 cm ^2