Given the figure, find
- ∠t
- ∠s
(a)
∠MNS
= 180° - 131°
= 49° (Angles on a straight line)
∠t = 49° (Alternate angles)
(b)
∠SRN
= 180° - 113°
= 67° (Angles on a straight line)
∠s
= 180° - 67° - 74°
= 39° (Angles sum of triangle)
Answer(s): (a) 49°; (b) 39°