An equilateral triangle, STU, is folded as shown in the figure. Find
- ∠AZU
- ∠TAU.
(a)
∠ZUA = 60° (Equilateral triangle STU)
∠AZU
= 180° - 60° - 53° (Angles sum of triangle)
= 67°
(b)
∠TAU
= 180° - 53° - 53°
= 74° (Angles on a straight line)
Answer(s): (a) 67°; (b) 74°