Question

area of a circle is 314 CM square find its circumference use π=3.14

Answer 1

Area is πr^2=314
r^2=314/3.14=100cm2
r=10cm
Circumference=2*3.14*10=62.8cm

Answer 2

Heya !!
Area of circle = 314 cm
Πr²=314
3.14×r² = 314
r²=314 / 3.14
r²=(314×100) / 314
r²=100
r=10
Circumference = 2Πr
=> 2×3.14×10
=> 62.8cm²