Radius is the shortest distance via straight line between the center point of the circle and its perimeter. Diameter is the greatest distance via straight line from one perimeter of the circle to the opposite perimeter. Diameter = 2x Radius.
yes, it is correct perimeter = d * pi pi is the ratio between the perimeter and the diameter
there is no difference between units of linear and perimeter measurement.
The perimeter or circumference of a circle = diameter times pi
The perimeter is the diameter times pi. So the perimeter is 20pi ft
The perimeter of a full circle (circumference) is "pi" times the diameter. So the perimeter of a semi-circle will be half that; Perimeter = (pi/2) x (diameter).
Perimeter = pi*diameter = 113.1 cm
a radius is half the diameter of a circle
A diameter is a whole line and a radius is just half not a whole that is the difference
The difference between a perimeter and an area is the area is how much space is inside of a surface or a two dimensional object while the perimeter is the distance around a surface or a two dimensional object.