Question 15 — IGCSE 0580 March 2023 Paper 12
Cambridge IGCSE Mathematics 0580, Core tier, non-calculator. Topic: Geometry · Angles using geometrical properties. Worth 4 marks.
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Question text
15
B
C 65°
NOT TO
SCALE
O
46° x°
D
A
y°
E
The diagram shows a circle, centre O, with diameter AC.
A, B, C, D and E lie on the circumference of the circle.
(a) Find the value of x.
Give a reason for your answer.
x = ........................ because ...................................................................................................... [2]
(b) Find the value of y.
Give a reason for your answer.
y = ........................ because ...................................................................................................... [2]
© UCLES 2023 0580/12/F/M/23
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4
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