The surface of a table to be built will be in the shape shown below. The distance from the center of the shape to the center of each side is 8.7 inches and the length of each side is 10 inches. Part A: Describe or provide a diagram showing how you can decompose this shape into triangles.

Part B: What would be the area of each triangle?

Part C: Using your answers above, determine the area of the table's surface.