122 + (l - 4)2 = l2
144 + l2 - 8l + 16 = l2
8l - 160 = 0
l - 20 = 0
l = 20
The ladder is 20 feet long.
Jamessa R.
asked • 11/26/17A ladder is leaning against a building so that the distance from the ground to the top of the ladder is 4 feet
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.
Follow
•
2
Add comment
More
Report
1 Expert Answer
Still looking for help? Get the right answer, fast.
Ask a question for free
Get a free answer to a quick problem.
Most questions answered within 4 hours.
OR
Find an Online Tutor Now
Choose an expert and meet online. No packages or subscriptions, pay only for the time you need.
