MNPQ is a rectangular piece of paper. Corners P and Q are folded upwards as shown. ∠PST = 15° and ∠QSE = 13 °
- Find ∠PTS
- Find ∠QSP
(a)
∠PTS
= 180° - 90° - 15°
= 75° (Angles sum of triangle)
(b)
∠QSP
= 180° - 13° - 13° - 15° - 15°
= 124° (Angles on a straight line)
Answer(s): (a) 75° (b) 124°