Question

Find the area of a circle whose circumference is 30 cm.

(Hint: Area Of a Circle)​

Answer 1

Answer:

area of circle will be 71.62 cm square

Answer 2

2×22/7×r=30

44/7×r=30

r=30×7/43

r=15×7/22

r=105/22

arear=22/7×105/22×105/22

=15×105/22

=71.59