The figure is not drawn to scale. VXYZ is a trapezium and VX // ZY. Given that VZ = VW, ∠ZVW = 73° and ∠VXY = 98°.
- Find ∠XYZ
- Find ∠VWZ
- Find ∠WZY
(a)
∠XYZ
= 180° - 98°
= 82° (Interior angles, VX//ZY)
(b)
∠VWZ
= (180° - 73°) ÷ 2
= 107° ÷ 2
= 53.5° (Isosceles triangle)
(c)
∠WZY
= ∠VWZ
= 53.5° (Alternate angles, VX//ZY)
Answer(s): (a) 82°; (b) 53.5°; (c) 53.5°