Given that EFGH is a trapezium and EFH is an isosceles triangle, find the values of
- ∠y
- ∠z
(a)
∠y
= 180° - 86°
= 94° (Interior angles)
(b)
∠HFE
= 86° ÷ 2
= 43° (Exterior angle of a triangle)
∠GHF = ∠HFE = 43° (Alternate angles)
∠z
= 180° - 88° - 43°
= 49° (Angles sum of triangle)
Answer(s): (a) 94°; (b) 49°