Question

Match List I with List II and select the correct answer using the codes given below the lists:

List I (Regular plane figure)	List II (Measure of interior angles)
I . Triangle	(A) ${30}^{\circ }$
II. Square	(B) ${60}^{\circ }$
III. Pentagon	(C) ${108}^{\circ }$
IV. Hexagon	(D) ${90}^{\circ }$
	(E) ${120}^{\circ }$

• A. I-D, II-A, III-B, IV-E
• B. I-B, II-D, III-C, IV-E
• C. I-A, II-D, III-C, IV-B
• D. I-B, II-C, III-A, IV-D

Answer 1

The correct option is B I-B, II-D, III-C, IV-E

Each Angle (of a Regular Polygon) $=\frac{(n-2)\times 180°}{n}$

Triangle = $(3-2)\times 180°/3=60°$

Square= $(4-2)\times 180°/4=90°$

Pentagon = $(5-2)\times 180°/5=108°$

Hexagon =$(6-2)\times 180°/6=120°$

$\therefore$ I-B, II-D, III-C, IV-E