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A simple closed curve is ...................

The length from centre of circle to its boundary is called ..............

Diameter is what times the radius?

What is the length of the boundary of a circle called?

The longest chord of the circle is called...........

Radius is half of which term of the following.

If the diameter of a circle is 14cm then radius will be ..........

If the radius of a circle is 4cm then it's diameter will be .......

A line that joins any two points on the circle is called...........

Which of the following has the biggest radius?