geometry
posted by ken
What is the area of a sector with a central angle of 210 degrees and a diameter of 4.6 m?

plumpycat
Radius = 4.6/2 = 2.3
Area = pi*(2.3)^2*(210/360) 
Bosnian
If your quesions refers to circle then:
Area of a circle:
A = r ^ 2 * π
210 ° / 360 ° = 2 * 3 * 5 * 7 / 2 ^ 3 * 3 ^ 2 * 5 =
7 / 2 ^ 2 * 3 =
7 / 4 * 3 = 7 / 12
A(210°) = r ^ 2 ∙ π * 7 / 12
A(210°) = 7 * r ^ 2 ∙ π / 12 
Bosnian
r = d / 2
r = 4.6 / 2
r = 2.3 m
r ^ 2 = 2.3 ^ 2
r ^ 2 = 5.29
A(210°) = 7 * r ^ 2 ∙ π / 12
A(210°) = 7 * 5.29 ∙ π / 12
A(210°) = 37.03 ∙ π / 12
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