a ramp was constructed to load a truck. if the ramp is 10 ft long and the horizontal distance from the bottom of the ramp to the is 8 ft, what is the height from the ground to the top of the ramp?

You can use the Pythagorean theorem to do this. a^2 + b^2 = c^2.
a=8 ft
b=unknown
c=10ft
Square 10, to get 10,000
Square 8 to get 64
Subtract 64 from both sides
Then square root both sides to get x by itself. X = 99.7 ft