STUV is a rectangular piece of paper. Corners U and V are folded upwards as shown. ∠UXY = 18° and ∠VXE = 16 °
- Find ∠UYX
- Find ∠VXU
(a)
∠UYX
= 180° - 90° - 18°
= 72° (Angles sum of triangle)
(b)
∠VXU
= 180° - 16° - 16° - 18° - 18°
= 112° (Angles on a straight line)
Answer(s): (a) 72° (b) 112°