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Find the Number of Sides in a Polygon If the Sum of Its Interior Angle Is: 16 Right-angles. - Mathematics

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Sum

Find the number of sides in a polygon if the sum of its interior angle is: 16 right-angles.

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Solution

Let no. of sides = n

Sum of angles of polygon = 16 right angles = 16 x 90 = 1440°

(n – 2) x 180° = 1440°

n – 2 = `1440/180`

n – 2 = 8

n = 8 + 2

n = 10

Concept: Sum of Angles of a Polynomial
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APPEARS IN

Selina Concise Mathematics Class 8 ICSE
Chapter 16 Understanding Shapes
Exercise 16 (A) | Q 3.3 | Page 180
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