Interior and Exterior Angles of an Octagon
Interior and Exterior Angles of an Octagon
TGM Original
In an octagon, four of the interior angles are \(2x{}^\circ \) each and the other four angles are \(\left( 2x+15 \right){}^\circ \), \({\left( 2x+25 \right){}^\circ }\), \(\left( 2x+35 \right){}^\circ \) and \(\left( 3x-15 \right){}^\circ \) respectively.
Find
- the value of \(x\),
- the size of the smallest exterior angle.
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Answer:(a) \(x=60\) (b) \(15^\circ\)
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