Find the area of the triangle below if the area of a triangle is defined as A = 1/2 base x height. Hint: this may require using Pythagorean Theorem more than once.

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.