Circles Quiz - CBSE Class 7 Mathematics

Free practice quiz: Circles (CBSE Class 7 Mathematics). 16 multiple-choice questions with answers and explanations. Play online, no sign-up needed.

Sample questions

1. What is the center point of a circle called?

   1. Center
   2. Middle
   3. Origin
   4. Focus
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   Answer: A. Center

   The center point of a circle is called the Center.

2. If a circle's radius is 4 cm, what is the diameter?

   1. 2 cm
   2. 4 cm
   3. 8 cm
   4. 16 cm
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   Answer: C. 8 cm

   The diameter is twice the radius; thus for 4 cm radius, the diameter is 8 cm.

3. What do you call the longest chord in a circle?

   1. Radius
   2. Tangent
   3. Diameter
   4. Arc
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   Answer: C. Diameter

   The diameter is the longest chord in a circle, passing through the center.

4. What is the angle formed in a semicircle?

   1. 45°
   2. 180°
   3. 90°
   4. 360°
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   Answer: C. 90°

   The angle formed in a semicircle is a right angle, which is 90°.

5. If the circumference of a circle is 31.4 cm, what is the approximate radius? (π ≈ 3.14)

   1. 5 cm
   2. 10 cm
   3. 15 cm
   4. 20 cm
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   Answer: A. 5 cm

   Circumference is 2πr, solving 31.4 = 2 × 3.14 × r gives r ≈ 5 cm.

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