Question

find the radius diameter and the are of a circle with circumference 43.96 m using 'pie'=22/7 ?

Answer 1

circumference = 2πr
or, 43.96= 2*(22/7)*r
or, 43.96 = (44/7)*r
or, r = (43.96*7)/44
= 6.99
Radius = 6.99 cm
Diameter = 2r
                = 2*6.99 = 13.98 cm
Area = πr²
= (22/7)*(6.99)²
= 153.56 cm²