A circular mirror is surrounded by a square metal frame. The radius is 2x. The side length of the metal frame is 14x. What is the area of the frame?

Answer 1

Area of the entire frame = (14x)² = 196x²

Area of the mirror = pi(2x)² = 4x²(pi)

Area of the frame surrounding the mirror = (196 - 4pi)x² = 183.43x²