Question

the bottom of a ladder must be placed 3 feet from a wall. the ladder is 12 feet long. how far above the ground does the ladder touch the wall?

Answer 1

Use the formula a squared plus b squared =csquared in this case you will come out with an equation like this 3sqaured + bsqaured =12squared 9+bsqaured =144 144-9= b= 135 B=approximately 11.5