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 689 square units, we can set up the equation as:
689 = πr^2
Solving for r, we get:
r^2 = 689/π
r = √(689/π)
r ≈ 14.81
Therefore, the radius of the circle is approximately 14.81 units.
A área de um círculo é 689 unidades quadradas, qual é o raio?
The area of a circle is 689 square units, what is the radius?
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1 ponto
14.81
109.71
219.43
29.62
1 answer