SOLUTION: A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 4
feet
less than the length of the ladder. Find the length of the la
Algebra.Com
Question 1049017: A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 4
feet
less than the length of the ladder. Find the length of the ladder if the distance from the bottom of the ladder to the building is 12 feet.
Answer by jorel555(1290) (Show Source): You can put this solution on YOUR website!
Let l be the length of the ladder. Then:
(12)²+(l-4)²=l²
144+l²-8l+16=l²
8l=160
l=20
The ladder is 20 feet long. ☺☺☺☺
RELATED QUESTIONS
I need help solving this with the pythagorean theorem.
a ladder is leaning against a... (answered by fractalier,It is costly,addingup,MathLover1)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by ikleyn)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by josgarithmetic,MathTherapy,stanbon)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by josgarithmetic)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by richwmiller)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by Boreal)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by stanbon)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by Boreal)
A ladder is leaning against a building so that the distance from the ground to the top of (answered by stanbon)