Question

Given triangle ABC is similar to triangle DEC. Could you use the proportion 9/10=8.75/EC to determine the measure of EC? If yes, solve for EC. If no, rewrite the proportion and then solve for EC.

Answer 1

9.72 approximately

Explanation:

Given triangles are similar, to solve 9/10=8.75/EC we cross multiply expressions:

9EC = 87.5 now divide both sides by 9

EC = 9.72 approximately