Q: What is the diameter of a CD 12mm 12cm or 12dm?

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The radius of a circle is the distance from the centre to the edge. The diameter is the distance right across the circle through the centre. So the diameter of a circle is always twice its radius. So if the radius of a circular CD is 6cm, the diameter is twice this - 12cm.

CD's have a diameter of 5.5 centimeters;)

It is easiest to draw it using two right angled triangles.Draw a line AB that is 2 units long. From B, draw BC which is perpendicular to AB and 2 units long. Join AC. From C, draw CD which is perpendicular to AC (clockwise if BC is clockwise from AB, or anticlockwise if BC is anticlockwise) and make CD 2 uinits long. Then AD is a line segment which is sqrt(12) units long.

If the lines AB and CD are parallel then they both will have the same slope of -8 but with different y intercepts

when angle abc and abd equalls to 90 degree then ab perpendicular to cd

Related questions

The radius of a circle is the distance from the centre to the edge. The diameter is the distance right across the circle through the centre. So the diameter of a circle is always twice its radius. So if the radius of a circular CD is 6cm, the diameter is twice this - 12cm.

12cm x 12cm

Standard CD's are 12cm in diameter, so if you're printing your own labels, just set the page to 12cm by 12cm. Unless they're pre-cut circles, you'll have to cut them yourself once you've printed them.

12 x 12cm

12cm from wikipedia

CD's have a diameter of 5.5 centimeters;)

A standard CD:- 15mm Internal diameter, 120mm external diameter, 1.1 mm thick A mini CD:- 15mm Internal diameter, 80mm external diameter, 1.1 mm thick

A standard CD is 4.75 5 inches rounded in diameter.

327mm ;)

The diameter of a CD is 11.43 so the radius is 5.715.

2

Tall? My CD's are round with a diameter of 120mm and 1mm thick.