Can someone help please it’s a math problem

In the diagram, the measure of angle 9 is 85° which angle must also measure 85°?

Aswimming pool is a rectangle with semicircles on the end. the rectangle is 12 meters wide and 30 meters long. the diameter and width of the swimming pool are equal. sketch and label an overhead diagram of the swimming pool. find the area of the swimming pool floor.

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?