RSTU is a rectangular piece of paper. Corners T and U are folded upwards as shown. ∠TWX = 20° and ∠UWE = 17 °
- Find ∠TXW
- Find ∠UWT
(a)
∠TXW
= 180° - 90° - 20°
= 70° (Angles sum of triangle)
(b)
∠UWT
= 180° - 17° - 17° - 20° - 20°
= 106° (Angles on a straight line)
Answer(s): (a) 70° (b) 106°