Question 9 — IGCSE 0580 Oct/Nov 2025 Paper 31
Cambridge IGCSE Mathematics 0580, Core tier, calculator. Topic: Geometry · Geometrical terms and vocabulary. Worth 4 marks.
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Question text
9 (a)
W rite down the mathematical name for this type of angle.
................................................. [1]
(b) ABC is a triangle.
C
102°
NOT TO
SCALE
54° x°
A B
Lily says x is 34.
Give a geometrical reason why Lily is not correct.
.....................................................................................................................................................
..................................................................................................................................................... [1]
(c)
D
126°
C
A 48° x°
NOT TO
E
SCALE
75°
B
ABCD is a quadrilateral.
DCE is a straight line.
Calculate the value of x.
x = ................................................ [2]
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7
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