LMNP is a rectangular piece of paper. Corners N and P are folded upwards as shown. ∠NRS = 14° and ∠PRE = 12 °
- Find ∠NSR
- Find ∠PRN
(a)
∠NSR
= 180° - 90° - 14°
= 76° (Angles sum of triangle)
(b)
∠PRN
= 180° - 12° - 12° - 14° - 14°
= 128° (Angles on a straight line)
Answer(s): (a) 76° (b) 128°