 # Each interior angle in the second polygon = 180° - 18° = 162.2. How many diagonals does each of the following have?360°Each exterior angle in the second polygon= 18°20..Exercise 13.11. Some figures are given below.(1) (ii) (iii) (iv)(vi)Classify each of them on the basis of the following:(a) Simple curve(b) Simple closed curve(d) Convex polygon(e) Concave polygonOX8(v)(c) Polygon(b) A regular he(a) A convex quadrilateral3. Find the sum of measures of all interior angles of a polygon w) 12Sumber of sides of a regular polygon whose each one(i) 8​

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372 cents Questioner has mentioned that a polygon has interior angles of

162

o

. It is assumed from this that all interior angles are

162

o

.

As interior angles are

162

o

, each exterior angle is

180

o

162

o

=

18

o

.

Sum of all the exterior angles of a polygon is always

360

o

and as each exterior angle is

18

o

,

Number of angles / sides of polygon are

360

o

18

o

=

20

Place a thanks if helps mate

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