CDEF is a rectangular piece of paper. Corners E and F are folded upwards as shown. ∠EHJ = 19° and ∠FHE = 13 °
- Find ∠EJH
- Find ∠FHE
(a)
∠EJH
= 180° - 90° - 19°
= 71° (Angles sum of triangle)
(b)
∠FHE
= 180° - 13° - 13° - 19° - 19°
= 116° (Angles on a straight line)
Answer(s): (a) 71° (b) 116°