ABCD is a parallelogram. ADE and BFE are straight lines. Find the values of
- ∠q
- ∠t
- ∠s
- ∠r
(a)
∠q
= 180° - 52° - 57°
= 71° (Interior angles)
(b)
∠FAB = ∠FBA = 52° (Isosceles triangle)
∠t
= 180° - 57° - 52° - 52°
= 19° (Interior angles)
(c)
∠s
= 180° - 52° - 52°
= 76° (Isosceles triangle)
(d)
∠r = 57° (Alternate angles)
Answer(s): (a) 71°; (b) 19°; (c) 76°; (d) 57°