Area and Perimeter Unit Test
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Question
If the area of a circle is 28.26 cm2 , what is the radius of the circle?(1 point)
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 is 28.26 cm^2, we can plug this value into the formula and solve for the radius:
28.26 = πr^2
To find the radius, we need to divide both sides of the equation by π and then take the square root:
r^2 = 28.26/π
r^2 ≈ 9
r ≈ √9
r = 3
So, the radius of the circle is 3 cm.