It says "Which circle has the greatest area?
12.) Diameter = 4 in
13.) Radius = 2 in
14.) Circumference = 15 in
15.) Diameter = 0.5 ft"
How would I solve this? When it gave me the diameter and the radius I can solve the area but what exactly do I do with the circumference? Thanks so much! :)
12.) Diameter = 4 in
13.) Radius = 2 in
14.) Circumference = 15 in
15.) Diameter = 0.5 ft"
How would I solve this? When it gave me the diameter and the radius I can solve the area but what exactly do I do with the circumference? Thanks so much! :)
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Use the circumference to determine the radius.
circumference = 2πr
15 = 2πr
r = 15/(2π)
The circle with the greatest radius has the greatest area.
12. r = d/2 = 2 in
13. r = 2 in
14. r = circumference/(2π) = 15/(2π) ≅ 2.39 in
15. r = 0.5/2 ft = 0.25 ft = 3 in
circumference = 2πr
15 = 2πr
r = 15/(2π)
The circle with the greatest radius has the greatest area.
12. r = d/2 = 2 in
13. r = 2 in
14. r = circumference/(2π) = 15/(2π) ≅ 2.39 in
15. r = 0.5/2 ft = 0.25 ft = 3 in
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12.) Diameter = 4 in.
Area = 4pi square inches = 12.57 sq. in
13.) Radius = 2 in.
Area = 4*pi square inches = 12.57 sq.in.
14.) Circumference = 15 in
15 = 2*pi*r
r = 7.5/pi = 2.387
Area = pi *(2.37)^2 = 17.9 sq. in.square inches
15.) Diameter = 0.5 ft" = 6 inches
Area = pi*(3)^2 = 28.27 sq. in.
Area = 4pi square inches = 12.57 sq. in
13.) Radius = 2 in.
Area = 4*pi square inches = 12.57 sq.in.
14.) Circumference = 15 in
15 = 2*pi*r
r = 7.5/pi = 2.387
Area = pi *(2.37)^2 = 17.9 sq. in.square inches
15.) Diameter = 0.5 ft" = 6 inches
Area = pi*(3)^2 = 28.27 sq. in.