Question 10 — IGCSE 0580 Oct/Nov 2025 Paper 13
Cambridge IGCSE Mathematics 0580, Core tier, non-calculator. Topic: Geometry · Angles using geometrical properties. Worth 4 marks.
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Question text
10
x°
40° NOT TO
SCALE
y°
The diagram shows an isosceles triangle between a pair of parallel lines.
(a) Find the value of x.
x = ................................................ [2]
(b) Find the value of y.
Give a geometrical reason for your answer .
y = ...................... because .......................................................................................................
..................................................................................................................................................... [2]
M
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
TON
OD
NIGRAM
SIHT
NI
ETIRW
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