Question 21 — IGCSE 0580 Specimen 2025 Paper 31
Cambridge IGCSE Mathematics 0580, Core tier, calculator. Topic: Geometry · Angles using geometrical properties. Worth 4 marks.
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Question text
21
NOT TO
P
SCALE
6.2 cm
32°
R
O
Q
The diagram shows a circle, centre O, with diameter PQ.
R is a point on the circumference.
(a) Give a geometrical reason why angle PRQ is 90°.
...................................................................................................................................................... [1]
(b) Calculate the length of PQ.
PQ = .......................................... cm [3]
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20
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