Triangles Quiz - CBSE Class 6 Mathematics

Free practice quiz: Triangles (CBSE Class 6 Mathematics). 10 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the sum of the angles in a triangle?

   1. 90 degrees
   2. 180 degrees
   3. 360 degrees
   4. 270 degrees
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   Answer: B. 180 degrees

   In any triangle, the sum of the interior angles always equals 180 degrees.

2. How many sides does a triangle have?

   1. 2
   2. 3
   3. 4
   4. 5
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   Answer: B. 3

   A triangle is defined as a polygon with three edges and three vertices.

3. A triangle has sides of lengths 3 cm, 4 cm, and 5 cm. What type of triangle is this?

   1. Equilateral
   2. Scalene
   3. Isosceles
   4. Right
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   Answer: D. Right

   This triangle follows the Pythagorean theorem (3^2 + 4^2 = 5^2), which means it's a right triangle.

4. A triangle has two equal sides of length 6 cm. If the base is 8 cm, what is its type?

   1. Equilateral
   2. Isosceles
   3. Scalene
   4. Right
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   Answer: B. Isosceles

   Since two sides are equal in length, this triangle is classified as isosceles.

5. Calculate the area of a triangle with a base of 12 cm and a height of 10 cm.

   1. 60 cm²
   2. 120 cm²
   3. 80 cm²
   4. 100 cm²
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   Answer: A. 60 cm²

   The area is found using the formula: (base × height) / 2 = (12 × 10) / 2 = 60 cm².

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