A circumference
A circumference
It is called a radius
Assuming that primeter is your way of spelling perimeterand rectangel is your way of spelling rectangle, the answer is 22 metres.
If you're asking for the PRIINISTER its Rhodri Morgan
a hemisphere
semicircleA half circle is called a semicircle.Half a circle is a semi-circle
The perimeter of the square is 40 inches.
you add up the sides of the figure.
A part of a circle between two points on a circle is called is called an arc.
Half a circle is called a semi-circle. Sometimes it is called a half-moon.
The inside of a circle is called its area.
The inside of a circle is called its area.