Mariah cuts a rectangle along its diagonal. two congruent triangles are created. the two angles created by the diagonal have a sum of 90°. the smaller angle is 1/5 the measure of the larger angle. let x represent the measure of the larger angle and let y represent the measure of the smaller angle. what is a system of equations that can be used to find the measures of the two angles? x + y = 90 and y = x – 1/5 y = 90 + x and y = 5 + x y = 90 + x and y = 5x x + y = 90 and y = x/5