# Find the Number of Sides in a Polygon If the Sum of Its Interior Angle Is: 32 Right-angles. - Mathematics

Sum

Find the number of sides in a polygon if the sum of its interior angle is: 32 right-angles.

#### Solution

Let no. of sides = n

Sum of angles of polygon = 32 right angles = 32 x 90 = 2880°

(n – 2) x 180° = 2880

n – 2 = 2880/180

n – 2 = 16

n = 16 + 2

n = 18

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 3.4 | Page 180