EFGH is a parallelogram. EHJ and FKJ are straight lines. Find the values of
- ∠j
- ∠n
- ∠m
- ∠k
(a)
∠j
= 180° - 53° - 56°
= 71° (Interior angles)
(b)
∠KEF = ∠KFE = 53° (Isosceles triangle)
∠n
= 180° - 56° - 53° - 53°
= 18° (Interior angles)
(c)
∠m
= 180° - 53° - 53°
= 74° (Isosceles triangle)
(d)
∠k = 56° (Alternate angles)
Answer(s): (a) 71°; (b) 18°; (c) 74°; (d) 56°
