ABCD is a rectangular piece of paper. Corners C and D are folded upwards as shown. ∠CFG = 17° and ∠DFE = 14 °
- Find ∠CGF
- Find ∠DFC
(a)
∠CGF
= 180° - 90° - 17°
= 73° (Angles sum of triangle)
(b)
∠DFC
= 180° - 14° - 14° - 17° - 17°
= 118° (Angles on a straight line)
Answer(s): (a) 73° (b) 118°