Question

the circumference of a circle is 31.4 cm find the radius and the area of a circle
$(\pi = 3.14)$

Answer 1

so circumference = 31.4

2πr=31.4
2*π*r=31.4
2*3.14*r=31.4

on cancelling 3.14 to 31.4

2*r=10
r=5

now the area of circle
πr^2
3.14*5*5=78.5

Answer 2

✔️Hey mate ur answer is in the attachment above


HOPE IT HELPS ❤