Question

given that ∅ 140, area =99cm²caculate the radius of the circle​

Answer 1

Answer:

Step-by-step explanation:

Area of the circle =140=pie*radius square

Let the radius be x

140=22/7*r*r

R^2=(140*7)/22=44.54

R=6.67m

Circumference = 2pie*r

2*22/7*6.67=41.90m