4. Prove the identity sin(x) + sin(x) cot^2(x) = csc(x)

You are assembling pieces of an iron gate to complete a fence. the finished gate will look like the one below. in order to assemble the gate it is important to under how the pieces are related. part 1: how are pies 1 and 2 in the archway related? part 2: how are the rectangular sections 5 and 6 in the center of the gate related to each other?

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If there are 3.281 feet in 1 meter, how many inches are in one centimeter