Let x = angle Tap
Let y = angle Bre
Tap and Bre are supplementary, therefore
x + y = 180 (1)
Angle Bre is its own complement, therefore
y = 90 - y (2)
Add y to each side.
2y = 90
Divide each side by 2.
y = 45°
From (1), obtain
x + 45 = 180
Subtract 45 from each side.
x = 135°
Answer: Angle Tap is 145°°
