Question

The diagram shows a

regular pentagon
and a square.
Calculate the size of
the angle marked x.
You must show all
your working.

Answer 1

Explanation:

A regular Pentagon has 5 angles of 108° each

A square has 4 angles of 90° each

x will be equal to 360° minus the other 2 angles around it

x=360-(90+108)

x=360-198

x= 162°