Problem 4.
 Given triangle ABC, such that



Find the area of the polygon ACED.

 Solution:

Solving this equation yields x = 7.5.

Therefore, the area of polygon ACED is



| Problem 1 | Problem 2 | Problem 3 | Problem 4 | Problem 5 |
| Problem 6 | Problem 7 | Problem 8 | Problem 9 | Problem 10 |

RETURN