STUV is a parallelogram. SVW and TXW are straight lines. Find the values of
- ∠a
- ∠d
- ∠c
- ∠b
(a)
∠a
= 180° - 52° - 58°
= 70° (Interior angles)
(b)
∠XST = ∠XTS = 52° (Isosceles triangle)
∠d
= 180° - 58° - 52° - 52°
= 18° (Interior angles)
(c)
∠c
= 180° - 52° - 52°
= 76° (Isosceles triangle)
(d)
∠b = 58° (Alternate angles)
Answer(s): (a) 70°; (b) 18°; (c) 76°; (d) 58°