Question

A 6 m ladder is leaning against a wall. The base of the ladder is 1.5 m from the wall. Calculate how high up the wall the ladder reaches.

Answer 1

The ladder reaches 4.5 m up the wall.

Answer 2

Looks like the robot tutor never heard of Pythagoras ...

h^2 + 1.5^2 = 6^2
h = 5.8 m