Question

when a diagonal is drawn, the quadrilateral is divided into two triangle. so the sum of angles of the quadrilateral is 2×180 degree(360°).
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Answer 1

Given : when a diagonal is drawn, the quadrilateral is divided into two triangle. so the sum of angles of the quadrilateral is 2×180 degree(360°).

To Find :  Complete the table

Solution:

Polygon   number of sides    number of triangles     sum of angles

Quadrilateral         4                         2                          2 * 180°

Pentagon              5                         3                          3 * 180°

Hexagon               6                         4                          4 * 180°

Septagon               7                         5                          5 * 180°

polygon (n sides)   n                     n - 2                      (n-2)* 180°

Sum of interior angles of a n  sided polygon in   (n-2)* 180°

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Answer 2

Step-by-step explanation:

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