What is the sum of the measures of all the interior angles of a regular polygon of 5 sides?
Sum of all interior angles of a polygon with $$'n'$$ sides = $$(n-2)\times180^\circ$$
=> Sum of angles of a pentagon =Â $$(5-2)\times180^\circ$$
=Â $$3\times180^\circ=540^\circ$$
=> Ans - (D)
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