Question 17 — IGCSE 0580 Oct/Nov 2023 Paper 21
Cambridge IGCSE Mathematics 0580, Extended tier, non-calculator. Topic: Geometry · Angles using geometrical properties. Worth 3 marks.
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Question text
17
D
C
53° NOT TO
SCALE
20°
E
O
A
x°
B
A, B and C are points on the circumference of a circle, centre O.
Tangent DE touches the circle at C.
Angle BCE = 53° and angle ACO = 20°.
Find the value of x.
x = ................................................. [3]
Mark scheme
