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Circle Geometry Help Needed (1 Viewer)

Thread starter mc1007
Start date May 5, 2011

M

mc1007

New Member

#1

Could someone help me out in parts ii) iii) and iv) of this question please?

Much appreciated!

A

AAEldar

Premium Member

#2

$ii)\; \angle{SXQ}=180-\angle{STQ}\;\; (\text{Opp angles in cyclic quad}) \\ \therefore \angle{STR}=\angle{SXQ}\;\; (\text{Ext angle in cyclic quad}) \\ \therefore \angle{YRQ}+\angle{YPS}+\angle{SXQ}=\pi\;\; (\text{Angle sum of a triangle})$

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