Question

calculate the area of a circle whose diameter is 156 square​

Answer 1

Answer:

A = πr^2

r= d/2 =156/2 =78

S = 245.04m^2

Answer 2

since the formula of area of a circle is A=pi r^2 and the diameter is 156 so divide that by 2 and the radius is 78. 78 squared is 6,084 then you times that by pi (3.14 simplified) which is 19,103.76. so final answer is 19,103.76