As we can see, one of its angles is a right angle. Therefore, it is a right triangle. This allows us to use the Triangle Angle-Sum Theorem, which states that acute angles of a right triangle are complementary. In this case, it means that 11x-2 and 6x+7 add up to 90.
(11x-2)+(6x+7)=90
By solving this equation, we can find the value of x.
