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Example 1

Find the sum of the internal angles of a six, eight and ten sided polygon.

Solution:

720^{0}, 1080^{0}, 1440^{0}

Example 2

Find the sum of the external angles of a twelve sided polygon.

360^{0}

Example 3

If the sum of the internal angles of a polygon is 1260^{0}Find the number of sides.

Nine sides.

Index

3. 1 Definition 3. 2 Terminology 3. 3 Sum Of Interior Angles Of A Polygon 3. 4 Sum Of Exterior Angles Of A Polygon 3. 5 Trapezoids 3. 6 Parallelogram 3. 7 Square, Rectangle And Rhombus

Chapter 4