A ladder base is 3 m away from a house, and the fully extended ladder is 5 m long when it leans against the house. How high does the ladder reach on the house?

Answer 1

It makes a right-angle triangle.

a^2 + b^2 = c^2

3^2 + b^2 = 5^2

9 + b^2 = 25

b^2 = 16

b = 4 meters

Answer 2

Thank you so very much