Mathematics - Leaving Certificate Examination - Sample Paper - 2012 Page 8
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A
Question 5B
α
ABCD is a cyclic quadrilateral.
The opposite sides, when extended,
meet at P and Q, as shown.
B
The angles α, β, and γ are as shown.
β γ
α
Prove that
+ =
° −
.
180
2
D
β
C
P
γ
Q
Leaving Certificate 2012 – Sample Paper
Page 8 of 19
Project Maths, Phase 1
Paper 2 – Ordinary Level
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