What is the area of the shaded region in the given circle in terms of and in simplest form? Please help? I don't understand how to do it. Image below

Question

What is the area of the shaded region in the given circle in terms of  and in simplest form? Please help? I don't understand how to do it. Image below

anonymous · Answer

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anonymous · Answer

Area of full circle C = Pi*R^2 = 18^2*Pi = 324 Pi = 1017.36
Area of (shaded area - triangle) : 270*Pi*(300/360) = 270*Pi = 847.8 (1)
Triangle: The height of an equilateral triangle is equal to a*V3/2
Area of triangle: (18)*9V3/2 = 81*V3 = 140.30
Shaded area [( 1) + triangle] = 847.8 + 140.30 = 988.10

anonymous · Answer

Thanks but I somehow figured it out while I was waiting for someone to answer :)

anonymous · Answer

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