taiwoeden taiwoeden

07-05-2021
Mathematics

contestada

the area of a circle is 154cm, calculate it's radius?

Respuesta :

grifjin grifjin

07-05-2021

Answer:

r = 7

Step-by-step explanation:

area equals (pi)(r)^2

first divide 154 by pi

154/pi = 49

r^2 = 49

square root both sides

r = 7

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