Question

1. find ef.

d 8 e f
15

Explanation:

Step1: Identify the relationship

We know that $DF = DE+EF$. Given $DF = 15$ and $DE = 8$.

Step2: Solve for $EF$

We can rewrite the formula as $EF=DF - DE$. Substitute the given values: $EF=15 - 8$.

Answer:

7