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)

78.5 square mm

79 square mm

15.7 square mm

314 square mm

Answer 1

Area = πr^2 with r = 10/2 = 5 mm.
A = 3.14 × 5^2 = 3.14 × 25 = 78.5 mm².

Answer: 78.5 square mm.