Question

A 10 meter ladder rest against a vertical wall so that the distance between the foot of the ladder and the wall is 2 meter. Find the angle the ladder makes with the wall and height above the ground at which the upper end of the ladder touches the wall

Answer 1

78.46 degrees

Explanation:

We can use inverse cosine of the measurements since we know the measurements and need the angle.

cos-1(2/10)= angle

Do this on a calculator and set the mode to degrees to get the answer