Question

Diameter of a circle whose radius is 'r' will be:

• A. \( 2r \)
• B. \( 3r \)
• C. \( \frac{3}{2}r \)
• D. \( 4r \)

Hint:

The diameter of a circle is always twice the radius: \( 2r \).

Answer 1

The Correct Option is A

Step 1: Understanding the Diameter.
The diameter of a circle is twice the radius. This means the formula for the diameter is: \[ \text{Diameter} = 2 \times \text{radius} = 2r. \] Step 2: Verifying the Options.

- Option (1): \( 2r \) is the correct formula for the diameter.
- Option (2): \( 3r \) is incorrect.
- Option (3): \( \frac{3}{2}r \) is incorrect.
- Option (4): \( 4r \) is incorrect. Conclusion:
Therefore, the correct answer is (1) \( 2r \).