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What is the best approximation for the area of a circle with a diameter of 13 meters? Use 3.14 to approximate pi. 40.8 m² 81.6 m² 132.7 m² 530.7 m²
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What is the best approximation for the area of a circle with a diameter of 13 meters? Use 3.14 to approximate pi. 40.8 m² 81.6 m² 132.7 m² 530.7 m²
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Nov 26, 2018
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What is the best approximation for the area of a circle with a diameter of 13 meters?
Use 3.14 to approximate pi.
40.8 m²
81.6 m²
132.7 m²
530.7 m²
Mathematics
middle-school
Monocell
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First, find the radius of the circle. The radius of a circle is half the diameter. r=13/2=6.5
Second, use the equation A=pi * r^2 to find the area of the circle.
A=(3.14) * (6.5^2) = 132.665m^2
so the answer is 132.7 m^2.
Rian Sanderson
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Dec 1, 2018
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