NPQR is a rectangular piece of paper. Corners Q and R are folded upwards as shown. ∠QTU = 19° and ∠RTE = 11 °
- Find ∠QUT
- Find ∠RTQ
(a)
∠QUT
= 180° - 90° - 19°
= 71° (Angles sum of triangle)
(b)
∠RTQ
= 180° - 11° - 11° - 19° - 19°
= 120° (Angles on a straight line)
Answer(s): (a) 71° (b) 120°