In the figure, SUW and TUV are straight lines. US = UT and VU = VW. If ∠TSU = 50°, find
- ∠SUV
- ∠UVW
(a)
∠SUV
= 50° + 50°
= 100° (Exterior angle of a triangle)
(b)
∠VUW
= 180° - 100°
= 80° (Angles on a straight line)
∠UVW
= 180° - 80° - 80°
= 20° (Isosceles triangle)
Answer(s): (a) 100°; (b) 20°