A circle
The perimeter around a circle is known as its circumference
When the shape is a circle, then the perimeter is called"circumference".The circumference IS the perimeter of a circle.
That depends on the shape of the area. You can have different shapes that have the same area, but a different circumference.
Circumference is only used for circles. Perimeter is for every other 2D shape.
Qrweer
The circumference of a shape measures how far around it. It is the total length of the boundary of the shape. For circles, the circumference is given by the formula C = 2πr, where r is the radius of the circle.
Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)Assuming the shape concerned is a circle, Radius = Circumference/(2*pi)and thenArea = pi*(radius)2= pi*(circumference)2/(2*pi)2= (circumference)2/(4*pi)
the perimeter or the circumference
That depends on what shape you are talking about.
Volume (sphere) = (4/3) pi r^(3) Hence by algebraic rearrangement 3V = 4pi r^(3) r^(3) = 3V/(4pi) r = ( 3V/4pi)^(1/3) ; that is the 'cube root'.
It depends on the shape of the acre. A rectangular acre will have a different circumference than a square or round one. One acre is 43,560 square feet. If it was in a square shape, each side would be 208.7 ft on each side, so the circumference would be 4 x 208.7 ft or 834.8 ft. But what if the acre were round? Then it would be 739.7 ft in circumference.
There isn't any. The circumference is just a special name for a perimeter of a round shape.