Angle A measures 65°. What is its complementary angle measure?

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).

The tile along the edge of a triangular community pool needs to be replaced? ?

16x^2-16x=5 solve the equation by completing the square