Triangle JKL and triangle GHI are shown in the figure.
Triangle G H I and triangle J K L are shown. Angle L and angle I are congruent. Angle J and G are congruent to each other. Angle K and angle H are right angles.
All triangle angles add up to 180°. We know that there is a 90° angle and a 48° angle in both. Now we subtract 180°-(90°+48°) and we find that the remaining possibility is 42°.
