Polygon Interior Angle Sum Worksheet
This worksheet focuses on understanding and calculating the sum of interior angles in polygons for Grade 10 students.
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Polygon Interior Angle Sum
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Read each question carefully and answer to the best of your ability. Show all your work for full credit.
1. The sum of the interior angles of a polygon with 'n' sides is given by the formula .
2. A polygon with 5 sides is called a .
3. The sum of the exterior angles of any convex polygon is always degrees.
4. What is the sum of the interior angles of a hexagon?
360°
540°
720°
900°
5. If the sum of the interior angles of a polygon is 1080°, how many sides does the polygon have?
6 sides
7 sides
8 sides
9 sides
6. Calculate the sum of the interior angles of a regular decagon (10-sided polygon).
7. A polygon has an interior angle sum of 1440°. How many sides does it have? What is the name of this polygon?
8. The sum of the interior angles of a quadrilateral is 360°.
True
False
9. A triangle has an interior angle sum of 180°.
True
False
10. The interior angle of a regular polygon is 150°. How many sides does the polygon have? What is the sum of its interior angles?
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