Question

find area of circle whose circumference is 88 cm

Answer 1

circumference =2πr
88=2πr
44=πr
44÷π=r
r=14(approximately)

now, area = πr^2
=π×14×14
=615.75

Answer 2

Circumference of circle = 88
2 π r = 88
2× 22\7 × r = 88
44\7 × r = 88
r = 88 × 7 \44
r = 14

Area of circle = π r^2
= 22\7 ×r × r
= 22\7 × 14 × 14
= 616 cm^2