Answer:
11
Step-by-step explanation:
y+7=18
take away 7 by subtracting from both sides
-7. -7
y=11
y+7=18(take +7 when it crosses the= sign it changes to -7)
y=18-7
12 meters
You have to use the inverse of the pythagorean theorem to do this so you do square root of (20x20-16x16) which is 12
one solution = a, that is your answer
76/86
