Perimeter And Area

Front

The perimeter of a circle is also known as the ______of the circle

Back

circumference

Front

Ratio of circumference to diameter is a constant and it is denoted as ____.

Back

Front

Is the circumference of a circle always more than three times its diameter?

Back

Yes

Front

Two or more circles with same centre but different radii are known as _______.

Back

concentric circles