MathDB
a ladder is leaning against a house 1999 HMMT Team 2

Source:

January 1, 2022
geometryright triangle

Problem Statement

A ladder is leaning against a house with its lower end 1515 feet from the house. When the lower end is pulled 99 feet farther from the house, the upper end slides 1313 feet down. How long is the ladder (in feet)?