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**Construction of a circle**:

To construct a circle, we should make a note of the radius.

Radius is the only component required to construct a circle.

Now, let us learn to construct a circle step-by-step.

**Construct a circle with \(3cm\) as radius**.

**Step \(1\)**: Mark the fixed point as '\(O\)'.

**Step \(2\)**: Draw a line segment of \(3cm\) from '\(O\)'. Mark the other end of the line segment as '\(A\)'.

**Step \(3\)**: With '\(O\)' as centre, rotate the compass firmly from '\(A\)' until the circle is achieved.

**Practical construction is as follows**: