Angles Quiz - CBSE Class 7 Mathematics

Free practice quiz: Angles (CBSE Class 7 Mathematics). 20 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. How many degrees is a right angle?

   1. 45
   2. 90
   3. 180
   4. 360
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   Answer: B. 90

   A right angle measures exactly 90 degrees.

2. What is the measure of an angle formed by two perpendicular lines?

   1. 90
   2. 180
   3. 360
   4. 45
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   Answer: A. 90

   Two perpendicular lines form a right angle, which measures 90 degrees.

3. If two angles are supplementary and one measures 120 degrees, what is the measure of the other angle?

   1. 120
   2. 60
   3. 90
   4. 180
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   Answer: B. 60

   Supplementary angles sum up to 180 degrees. If one angle is 120 degrees, the other is 180 - 120 = 60 degrees.

4. What is the measure of each angle in an equilateral triangle?

   1. 30 degrees
   2. 60 degrees
   3. 90 degrees
   4. 120 degrees
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   Answer: B. 60 degrees

   In an equilateral triangle, all angles are equal and sum to 180 degrees, so each angle is 60 degrees.

5. What is the exterior angle of a triangle if its opposite interior angles measure 50 degrees and 70 degrees?

   1. 120 degrees
   2. 70 degrees
   3. 50 degrees
   4. 180 degrees
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   Answer: A. 120 degrees

   The exterior angle of a triangle is equal to the sum of its opposite interior angles. Thus, it is 50 + 70 = 120 degrees.

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