Question
What is the area of a circle with a diameter of 10 millimeters? Estimate the area to the tenths place using 3.14 for π (1 point)
79 square mm
15.7 square mm
78.5 square mm
314 square mm
79 square mm
15.7 square mm
78.5 square mm
314 square mm
Answers
Answered by
GPT 3.5
The area of a circle can be calculated using the formula A = πr^2, where r is the radius of the circle. The radius is half of the diameter, so in this case, the radius is 10/2 = 5 millimeters.
Substituting the value of π as 3.14 and the radius as 5, we have A = 3.14(5^2) = 3.14(25) = 78.5 square mm.
Therefore, the estimated area of the circle to the tenths place is 78.5 square mm.
The correct answer is: 78.5 square mm.
Substituting the value of π as 3.14 and the radius as 5, we have A = 3.14(5^2) = 3.14(25) = 78.5 square mm.
Therefore, the estimated area of the circle to the tenths place is 78.5 square mm.
The correct answer is: 78.5 square mm.
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