The radius is the distance from the center to the outer edge of the circle. You can measure the diameter, the distance from side to side, and divide by 2.
Radias
The cord of a circle that contains the center of that circle is a diameter of that circle.
You do a diameter circle!!
A circle with a diameter of 28 is a circle.
The radius is the distance from the center to the outer edge of the circle. You can measure the diameter, the distance from side to side, and divide by 2.
If it's the perimeter of a circle you go C=pie x diameter or C= 2 x pie x radias = 2 pie radias. This is all confusing but the answer is 62.83
Pi times the diameter of a circle gives its circumference. Since the radius is 5 cm, the diameter is 10 cm, and pi x 10 cm is the answer, or 31.4159 cm.
Radias
12
12pi or about 37.699
circumference = 2*pi*radius
456m = 45 600cm
456m converts to 45,600cm @100cm per meter.
The cord of a circle that contains the center of that circle is a diameter of that circle.
You do a diameter circle!!
If you mean the diameter of a circle with area pi, then the diameter is 2. If you mean the diameter of a circle with circumference pi, then the diameter is 2. If you mean the diameter of a circle with diameter pi, then the diameter is pi. If you mean the diameter of a circle with radius pi, then the diameter is 2pi.