varner5071 varner5071

21-01-2019
Mathematics

contestada

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

Respuesta :

wolf1728 wolf1728

21-01-2019

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:

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