Polygon Interior Angle Sum Worksheet
This worksheet focuses on understanding and calculating the sum of interior angles in various polygons for Grade 9 Geometry students.
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Polygon Interior Angle Sum Worksheet
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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 interior angles of a regular hexagon is degrees.
1. What is the sum of the interior angles of a quadrilateral?
180°
360°
540°
720°
2. If the sum of the interior angles of a polygon is 1080°, how many sides does it have?
6 sides
7 sides
8 sides
9 sides
1. Calculate the sum of the interior angles of a nonagon.
2. If each interior angle of a regular polygon measures 144°, how many sides does the polygon have?
1. A triangle is a polygon whose interior angles sum to 180°.
True
False
2. The sum of the interior angles of an octagon is 900°.
True
False
1. A polygon has an interior angle sum of 1260°. Draw this polygon and label its angles with 'x' (assuming it's a regular polygon). Then, calculate the measure of each interior angle.