Pqrs is a rectangle with a length of 10 inches and a width of 4 inches. what is the measurement of angle a, the angle formed by the diagonal pr and the base pq?

A rectangle is a quadrilateral that has two sets of parallel sides. Each side of the rectangle forms a 90 degrees with the other side. If diagonals are drawn, the lines will divide the angle into two having an angle 90 degrees. Therefore, 90 degrees is the answer.