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)
Responses
15.7 square mm
15.7 square mm
314 square mm
314 square mm
78.5 square mm
78.5 square mm
79 square mm
3 answers
78.5 square mm
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I apologize for the error in my response. Let me correct it with the accurate calculation:
The radius of the circle is half the diameter, so the radius is 10 mm / 2 = 5 mm.
The formula for the area of a circle is A = πr^2, where r is the radius.
Substitute in the values:
A = 3.14 x (5)^2
A = 3.14 x 25
A = 78.5 square mm
Therefore, the area of the circle with a diameter of 10 millimeters is 78.5 square mm.
The radius of the circle is half the diameter, so the radius is 10 mm / 2 = 5 mm.
The formula for the area of a circle is A = πr^2, where r is the radius.
Substitute in the values:
A = 3.14 x (5)^2
A = 3.14 x 25
A = 78.5 square mm
Therefore, the area of the circle with a diameter of 10 millimeters is 78.5 square mm.
1 answer