#### Answer

75 yd

#### Work Step by Step

The area of triangle can be found by using the formula A=$\frac{1}{2}$bh, where b represents the length of the base and h represents the length of the height.
Because we are given that the area is 7500 and the length of the base is 200, plug these values into the formula to get:
7500=$\frac{1}{2}$(200)h
7500=100h
h=75