A ladder is leaning against a house so that the top of the ladder is 20 feet above the ground. The angle with the ground is 65°. How far is the base of the ladder from the
house?

The construction of copying qpr is started below. the next step is to set the width of the compass to the length of ab. how does this step ensure that a new angle will be congruent to the original angle? by using compass take the measures of angle and draw the same arc according to it.