CDEF is a rectangular piece of paper. Corners E and F are folded upwards as shown. ∠EHJ = 23° and ∠FHE = 19 °
- Find ∠EJH
- Find ∠FHE
(a)
∠EJH
= 180° - 90° - 23°
= 67° (Angles sum of triangle)
(b)
∠FHE
= 180° - 19° - 19° - 23° - 23°
= 96° (Angles on a straight line)
Answer(s): (a) 67° (b) 96°