The larger angle is a right angle Find the measure of angle

The larger angle is a right angle.
Find the measure of angle 1.

Solution

The angle sum is 180

So, the sum of angle is Angle 1 +Angle 2 = 180

17x-18 +x = 90

18x-18 = 90

x - 1 = 5

x = 6

Therefore, angle 1 is 17*6 - 18 = 84 degrees