Diameter of a mat of a trampoline is 12 ft in the diameter of its metal frame is 14 ft what is the length in feet of the metal frame that surrounds the trampoline use 3.14 for π and round your answer to the nearest tenth

A)a square brown tarp has a square green patch green in the corner the side length of the tarp is (x + 8) and the side length of the patch is x what is the area of the brown part of the tarpb)a square red placemat has a gold square in the corner the side length of the gold square is (x - 2) inches with the width of the red region is 4 in what is the area of the red part of the placemat