The radius of a circle is 98 millimeters. What is the area of the circle? Use 3.14 for PI and express your answer to the tenths place
A. 615.4 mm2
B. 30,156.6 mm2
C. 9,604 mm2
D. 307.7 mm2
3 answers
6143.6 mm2
how do you know?
To find the area of a circle, you can use the formula A = πr^2, where A is the area and r is the radius.
Given that the radius of the circle is 98 millimeters, you can substitute that value into the formula:
A = 3.14 * (98)^2
A = 3.14 * 9604
A = 30159.56 mm^2
Rounded to the tenths place, the area of the circle is 30159.6 mm^2, which is option B.
Given that the radius of the circle is 98 millimeters, you can substitute that value into the formula:
A = 3.14 * (98)^2
A = 3.14 * 9604
A = 30159.56 mm^2
Rounded to the tenths place, the area of the circle is 30159.6 mm^2, which is option B.
1 answer