Answer: y = 4
Explanation:
First, we have to look at the triangle and understand which sides match each other. The side measure of EF matches the side of KH. Since we know these are congruent sides, we can set them equal to each other in an equation. So,
7y - 11 = 17.00
Now we add 11 to both sides, isolating the variable.
7y = 28.00
Now, we divide by 7 on both sides.
7y/7 = 28/7
y = 4