SOLUTION: a circle has an area of 10(3.14)cm sq. what is the diameter?

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Question 519231: a circle has an area of 10(3.14)cm sq. what is the diameter?
Answer by Maths68(1474) About Me  (Show Source):
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Area of Circle = pi * r^2
Here we have
A=(10)(3.14) cm sq
Compare above with the equation of Area of Circle
pi = 3.14
r^2 = 10
r=sqrt 10
r=3.16227
Diameter of Circle = 2*r
Diameter of Circle = 2* (3.16227)
Diameter of Circle = 6.32455 cm