Things that I find tricky (2)
- Created by: Nathan Lyne
- Created on: 06-06-12 11:25
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Rule 3
Opposite angles in a cyclic quadrilateral add up to 180 degrees
B+D=180 degrees
A+C=180 degrees: A+B+C+D=180 degrees.
Rule 4
Angle at the centre is twice the angle at the circumference - AOB = 2APB.
Rule 5
OM cuts…
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