Atriangle has a base 12ft long and an altitude 8ft high. find the area of the largest rectangle that can be inscribed in the triangle so that the base of the rectangle falls on the base of the triangle.
-ans: 24 sq. ft.

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.