Fill in the blank by using $<, >, =$ or $\le$.

Major arc  minor arc of the circle.

Fill in the blank by using $<, >, =$ or $\le$.

Major arc _____ semicircumference of the circle.

A diameter of a circle is a chord that _____ the centre.

If we join any two points of a circle by a line segment, we obtain a _____ of the circle.

Define the following:

Closed figures

Define each of the following:

Open figures