Answer:

Step-by-step explanation:
Since it is a right-angled triangle, we will apply Pythagoras Theorem.
<u>Given are:</u>
Base = 16
Perpendicular = x
Hypotenuse = 18
<u>Pythagoras Theorem:</u>

(18)² = (16)² + (x)²
324 = 256 + x²
Subtract 256 to both sides
324 - 256 = x²
68 = x²
Take sqrt on both sides
8.2 = x
x = 8.2
![\rule[225]{225}{2}](https://tex.z-dn.net/?f=%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
3/40 = 7.5%
Step-by-step explanation:
3/40 percent error.
3/40 = 7.5%
I am pretty sure it is crust