If the area of a small pizza is 78.5 in2, what size pizza box would best fit the small pizza?

If the area of a small pizza is 78.5 in², what size pizza box would best fit the small pizza?

A 12 in

B 11 in

C 10 in

D 9 in

Correct Answer: Option C

এখানে,
πr ² =78.5
বা, 22/7 ×r ² =78.5
বা,r ²=(78.5×7)/22
বা,r ²=24.97
বা,r ²=25
বা,r =5
ব্যাস =2r=2× 5=10 in