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In the figure, angle B=120 ∘ angle A=15 ...

In the figure, angle B=120 ∘ angle A=15 ∘ , AB=10 centimetres. Also distance from A to BC is AP.
a) Write the angle measures of triangle APB.
b) Find the lengths of AP, PB.
c) Calculate the area of triangle A B C.

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