RSTU is a rhombus, NPU and SPT are straight lines. If SP = PU, ∠PUT = 21° and ∠QST = 32°, find
- ∠PTU
- ∠QNP
(a)
∠PTU
= 87° - 21°
= 66° (Exterior angle of a triangle)
(b)
∠SNP
= 87° - 32°
= 55° (Exterior angle of a triangle)
∠QNP
= 180° - 55°
= 125° (Angles on a straight line)
Answer(s): (a) 66°; (b) 125°