An equilateral triangle, MNP, is folded as shown in the figure. Find
- ∠DCP
- ∠NDP.
(a)
∠CPD = 60° (Equilateral triangle MNP)
∠DCP
= 180° - 60° - 55° (Angles sum of triangle)
= 65°
(b)
∠NDP
= 180° - 55° - 55°
= 70° (Angles on a straight line)
Answer(s): (a) 65°; (b) 70°