Question

Use the formula for the area of a circle to solve for the radius of the circle if the area is 78.5cm^2

Answer 1

Answer:

Area = PI * radius^2

radius = Sq Root (Area / PI)

radius = Sq Root (78.5 / PI)

radius = Sq Root (24.9873260654)

radius = 4.9987

radius = 5 (rounded)

Step-by-step explanation: