Finding Interior and Exterior Angles in a Regular Octagon
Finding Interior and Exterior Angles in a Regular Octagon
Secondary 1
The figure shows a regular octagon \(ABCDEFGH\). The lines \(BC\) and \(ED\) produced meet at \(X\).
Calculate
- the size of each interior angle of the octagon,
- angle \(DCX\),
- angle \(CXD\).
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Answer:(a) \(135^\circ\) (b) \(\angle DCX=45^\circ\) (c) \(\angle CXD=90^\circ\)
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