In the diagram below which is not drawn to scale, $ABCDE$ is part of an $n$-sided regular polygo

Question

In the diagram below which is not drawn to scale, $ABCDE$ is part of an $n$-sided regular polygon, $DEPQRS$ is a regular hexagon, $CDS$ is an isosceles triangle and $\angle CSD=48{}^\circ $.

By stating your reason(s) clearly, find

$\angle CDE$.
the value of $n$.

Accepted Answer

(a) $\angle CDE=156^\circ$ (b) $n=15$

Angles in a Composite Figure of Regular Polygons

Angles in a Composite Figure of Regular Polygons

Video Solution:

Solution:

Solution locked