Find the area of the polygon. 7, 13,15 and 7.
To find the area of this polygon, we can use the formula for the area of a trapezoid.
Area = 1/2 * (b1 + b2) * h
In this case, the two bases (b1 and b2) are 7 and 15, and the height (h) is 13.
Area = 1/2 * (7 + 15) * 13
Area = 1/2 * 22 * 13
Area = 11 * 13
Area = 143
Therefore, the area of the polygon is 143 square units.