In the figure, not drawn to scale, two rectangles, WXDE and CDFG overlap each other as shown. Given that WZ // CB and YB // ZA.
- Find ∠i.
- Find ∠j.
(a)
∠XDF
= 90° - 79°
= 11°
∠i
= 90° - 11°
= 79°
(b)
∠XYB = ∠YZA = 121° (Corresponding angles)
∠YBC
= 180° - 121°
=59° (Interior angles)
∠j
= 360° - 84° - 59°
= 217°
Answer(s): (a) 79°; (b) 217°