In triangle xyz, z2 = x2 + y2. triangle xyz has sides x, qy, z opposite to the corresponding vertices x, y, z which equation is true about the measure of the angles of the triangle? the measure of angle xyz is equal to 100 degrees the measure of angle xzy is equal to 90 degrees the measure of angle xyz plus the measure of angle yxz is equal to 80 degrees the measure of angle xyz plus the measure of angle yxz is equal to 70 degrees