The figure shows a rectangle PQRS. ∠PST = 60° and ∠QSR = 40°. Find
- ∠QST
- ∠PQS
(a)
∠QST
= 60° + 40° - 90°
= 10° (Overlapping angles)
(b)
∠PSQ
= 60° - 10°
= 50° (Overlapping angles)
∠PQS
= 180° - 90° - 50°
= 40° (Angles sum of triangle)
Answer(s): (a) 10°; (b) 40°