Area and Perimeter Unit Test

Question

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Question
If the area of a circle is 28.26 cm2 , what is the radius of the circle?(1 point)
cm

Answer 1

The formula for the area of a circle is A = πr^2, where A is the area and r is the radius.

Given that the area of the circle is 28.26 cm^2, we can set up the equation as follows:

28.26 = πr^2

To find the radius, we can solve for r by dividing both sides of the equation by π and then taking the square root:

r^2 = 28.26 / π
r^2 = 9
r = √9
r = 3

Therefore, the radius of the circle is 3 cm.