Question

Match List I with List - II and select the correct answer using the codes given below the lists:
List I List II
(Regular Plane figure) (Measure of interior angles)

Answer 1

Triangle - $S=(n-2){180}^{\circ }=(3-2)\ast {180}^{\circ }={180}^{\circ }$
Each angle $\frac{{180}^{\circ }}{3}={60}^{\circ }$
Square - ${90}^{\circ }$
Pentagon - $S=(5-2)\ast {180}^{\circ }={540}^{\circ }$
Each interior angle $\frac{{540}^{\circ }}{5}={108}^{\circ }$
Hexagon $S=(6-2)\ast {180}^{\circ }={720}^{\circ }$
Each interior angle $\frac{{720}^{\circ }}{6}={120}^{\circ }$