If g(x)=k*f(x) what is the value of k

Given right triangle xyz, which correctly describes the locations of the sides in relation to

The figures below are made out of circles, semicircles, quarter circles, and a square. find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations).

6cm10 cma conical paper cup has dimensions as shown in the diagram. how much water can the cup hold when full?