WXYZ is a rhombus, TUZ and XUY are straight lines. If XU = UZ, ∠UZY = 20° and ∠VXY = 30°, find
- ∠UYZ
- ∠VTU
(a)
∠UYZ
= 88° - 20°
= 68° (Exterior angle of a triangle)
(b)
∠XTU
= 88° - 30°
= 58° (Exterior angle of a triangle)
∠VTU
= 180° - 58°
= 122° (Angles on a straight line)
Answer(s): (a) 68°; (b) 122°