In the figure, SUW and TUV are straight lines. US = UT and VU = VW. If ∠TSU = 60°, find
- ∠SUV
- ∠UVW
(a)
∠SUV
= 60° + 60°
= 120° (Exterior angle of a triangle)
(b)
∠VUW
= 180° - 120°
= 60° (Angles on a straight line)
∠UVW
= 180° - 60° - 60°
= 60° (Isosceles triangle)
Answer(s): (a) 120°; (b) 60°