83.8k views
0 votes
A 13​-foot ladder is placed against a vertical wall of a​ building, with the bottom of the ladder standing on level ground 5 feet from the base of the building. How high up the wall does the ladder​ reach?

1 Answer

4 votes
x^2 = 13^2 -6^2 = 169 -36 = 130

x =130^1/2 = about 11.4 feet high
User Manumoomoo
by
8.3k points