# A pyramid has a parallelogram shaped base and a peak directly above its center. Its base's sides have lengths of #9 # and #3 # and the pyramid's height is #9 #. If one of the base's corners has an angle of #(5pi)/12#, what is the pyramid's surface area?

Total surface area of the pyramid =

Area of parallelogram base

Area of

Area of

Lateral surface area =

Total surface area =Area of parallelogram base + Lateral surface area

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The surface area of the pyramid is 108 square units.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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- What is the area of an equilateral triangle with a side of 8?

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