Find the measure of arc GH. (inscribed angles, intercepted arcs)​

Can someone me with my hwplz(only the circled ones)

Ill mark the brainliest if you me with the these three questions 7,8,9

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?