Polygons and Their Types Quiz - CBSE Class 8 Mathematics

Free practice quiz: Polygons and Their Types (CBSE Class 8 Mathematics). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. Which of the following is a polygon?

   1. A circle
   2. A triangle
   3. A curved line
   4. A spiral
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   Answer: B. A triangle

   A polygon is a closed figure made up of line segments. A triangle is a polygon with three sides.

2. Identify the polygon with seven sides.

   1. Pentagon
   2. Hexagon
   3. Heptagon
   4. Octagon
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   Answer: C. Heptagon

   A heptagon is a seven-sided polygon.

3. If the sum of interior angles of a polygon is 1080 degrees, how many sides does it have?

   1. 6
   2. 7
   3. 8
   4. 9
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   Answer: C. 8

   Using the formula (n-2) * 180 = 1080, we solve for n: n-2 = 6, n = 8. Therefore, it's an octagon.

4. A polygon has 15 sides. What is the sum of its exterior angles?

   1. 180 degrees
   2. 360 degrees
   3. 540 degrees
   4. 720 degrees
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   Answer: B. 360 degrees

   The sum of exterior angles of any polygon is always 360 degrees.

5. Two angles of a quadrilateral are 110° and 100°. The other two angles are equal. Find the measure of each equal angle.

   1. 50°
   2. 60°
   3. 75°
   4. 85°
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   Answer: C. 75°

   The sum of angles in a quadrilateral is 360°. Let the equal angles be x. Then 110° + 100° + x + x = 360°. Solving for x gives x = 75°.

More quizzes

• Special Parallelograms
• Sum of the Measures of the Exterior Angles

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