In the figure, CDEF and DHJK are two rhombuses. If ∠HJK = 110° and ∠CFE = 98°, calculate
- ∠JHK
- ∠JED
- ∠KLE
(a)
∠JHK
= (180° - 110°) ÷ 2
= 35° (Isosceles triangle)
(b)
∠JED = ∠CFE = 98° (Corresponding angles)
(c)
∠KLE
= 98° - 35°
= 63° (Exterior angle of a triangle)
Answer(s): (a) 35°; (b) 98°; (c) 63°