In the figure, QRST and RVWX are two rhombuses. If ∠VWX = 115° and ∠QTS = 99°, calculate
- ∠WVX
- ∠WSR
- ∠XYS
(a)
∠WVX
= (180° - 115°) ÷ 2
= 32.5° (Isosceles triangle)
(b)
∠WSR = ∠QTS = 99° (Corresponding angles)
(c)
∠XYS
= 99° - 32.5°
= 66.5° (Exterior angle of a triangle)
Answer(s): (a) 32.5°; (b) 99°; (c) 66.5°