Phyo Sandar Win's answer to charlene's Secondary 1 Maths Singapore question.

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Phyo Sandar Win
Phyo Sandar Win's answer
1 answers (A Helpful Person)
1st
(a) 32° (exterior angle=sum of opp. int. angles, base angles of isosceles triangle)

(b) x°= 32+90=122° (alternate angles, PQ//RS)

(c) since y+50= 122 (exterior angle=sum of opp. int. angles in triangle), y°=72° #

(d) angle HGQ= 58° (angles on straight line),
z°= 58° (corresponding angles, PD//FH)