Find the area of each circle with the given diameter. Round off your answer to the nearest hundredths. Use [] = 3.14.
1. d = 25 mm; A = ___ sq. mm
2. d = 4.8 cm; A = ___ sq. cm
3. d = 3.04 m; A = ___ sq. m
4. d = 24 m; A = ___ sq. m
1. d = 25 mm; A = ___ sq. mm
2. d = 4.8 cm; A = ___ sq. cm
3. d = 3.04 m; A = ___ sq. m
4. d = 24 m; A = ___ sq. m
Add an Answer
More Questions From This User See All
Answers & Comments
The area of the circle is A = πr^2 = 3.14 x 12.5^2 = 490.625 sq. mm.
Rounded off to the nearest hundredths, A ≈ 490.63 sq. mm.
2.The radius of the circle is half of the diameter, so r = 4.8/2 = 2.4 cm.
The area of the circle is A = πr^2 = 3.14 x 2.4^2 = 18.096 sq. cm.
Rounded off to the nearest hundredths, A ≈ 18.10 sq. cm.
3.The radius of the circle is half of the diameter, so r = 3.04/2 = 1.52 m.
The area of the circle is A = πr^2 = 3.14 x 1.52^2 = 7.243 sq. m.
Rounded off to the nearest hundredths, A ≈ 7.24 sq. m.
4.The radius of the circle is half of the diameter, so r = 24/2 = 12 m.
The area of the circle is A = πr^2 = 3.14 x 12^2 = 452.16 sq. m.
Rounded off to the nearest hundredths, A ≈ 452.16 sq. m.