Question
45foot ladder is leaning against a building. The base of the ladder is 27 feet from the side of the building. How high does the ladder reach along the side of the building?
ladder reaches ___ feet high on the building.
ladder reaches ___ feet high on the building.
Answers
Ms. Sue
Time for Pythagoras!
a^2 + b^2 = c^2
27^2 + b^2 = 45^2
729 + b^2 = 2025
b^2 - 1296
b = 36
a^2 + b^2 = c^2
27^2 + b^2 = 45^2
729 + b^2 = 2025
b^2 - 1296
b = 36