ABCD is a rectangular piece of paper. Corners C and D are folded upwards as shown. ∠CFG = 22° and ∠DFE = 15 °
- Find ∠CGF
- Find ∠DFC
(a)
∠CGF
= 180° - 90° - 22°
= 68° (Angles sum of triangle)
(b)
∠DFC
= 180° - 15° - 15° - 22° - 22°
= 106° (Angles on a straight line)
Answer(s): (a) 68° (b) 106°