20 POINTS Standing on a small bluff overlooking a local pond, Clay wants to calculate the width of the pond.

b. From another point F, Clay measures 20 meters to D and 50 meters to E. Reece says that last summer this area dried out so much that he could walk the 49 meters from D to E. What is the measure of ∠F? Round intermediate results to 3 decimal places and the final answer to 1 decimal place.

c. Reece tells Clay that when the area defined by △DEF dries out, it becomes covered with native grasses and plants. What is the area of this section? Round intermediate results to 3 decimal places and the final answer to 1 decimal place