The figure shows a rectangle ABCD. ∠ADE = 56° and ∠BDC = 44°. Find
- ∠BDE
- ∠ABD
(a)
∠BDE
= 56° + 44° - 90°
= 10° (Overlapping angles)
(b)
∠ADB
= 56° - 10°
= 46° (Overlapping angles)
∠ABD
= 180° - 90° - 46°
= 44° (Angles sum of triangle)
Answer(s): (a) 10°; (b) 44°