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The diameter of a CD is 11.43 so the radius is 5.715.
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∙ 12y ago
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Given radius and chord length. What is the height of arc to midpoint of chord?
Draw the circle O, and the chord AB. From the center, draw the radius OC which passes though the midpoint, D, of AB. Since the radius OC bisects the chord AB, it is perpendicular to AB. So that CD is the required height, whose length equals to the difference of the length of the radius OC and the length of its part OD. Draw the radius OA and OB. So that OD is the median and the height of the isosceles triangle AOB, whose length equals to √(r2 - AB2/4) (by the Pythagorean theorem). Thus, the length of CD equals to r - √(r2 - AB2/4).
What is the radius of a compact disc with a circumference of 28.26 centimeters?
C = Pi * d 28.26 cm = 3.1415 * d d = 28.26 cm/3.1415 d = 8.9954 r = d/2 r = 8.9954 cm/2 4.4977 cm The radius of a CD with a circumference of 28.26 cm is about 4.50 cm.
What does it mean to square the radius?
It means to multiply the radius by itself: radius x radius
What is a radius square?
When you try to figure out an area of a circle, you square the radius, then multiply it by pi to get the area of a circle. A radius square is radius x radius, or radius squared.
How do you find the diameter if you have the radius?
The diameter is twice the radius. So multiply the radius by 2
What is radius of a CD or DVD?
The diameter of a CD is about 12 cm, so since the radius is 1/2 of the diameter, that would make the radius about 6 cm. 5.23 cm
If music CD is 2.5 inches in radius what is circumference?
The CD's circumference is 15.7 inches.
Find the circumference of a CD radius of 6 cm?
Multiply the radius by 2 x pi.
A CD has a radius of 6 cm Which is its diameter?
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.
What is the radius of 377mm CD?
if perimeter of cd=377mm perimeter of circle cd=2x22/7xr Using pie as 22/7 radius=> 2x22/7xr=377mm r= 120.0636943 r= 60.03184713mm -Keran Persaud Basiram
Can you find the circumference of a CD that has a radius of 6 centimeters?
nfughs
What is the size of the CD?
a CD is 120mm (4.7 inches) in diameter and 60mm radius, the hole is 15mm diamter (0.6 inches).
Where canI get the best CD Rates within a l00 mile radius?
Bank of America in Alma has 3.2% 5-year CD that is easily the best around. Consider getting a CD with them.
How much data does a CD hold?
a CD is 120mm (4.7 inches) in diameter and 60mm radius, the hole is 15mm diamter (0.6 inches).
Which changes occur as a cadmium atom Cd Becomes a cadmium ion Cd 2?
the cadmium atom looses two electrons and its radius decreases because by taking away two electrons (negatively charged) it makes the nucleus positive with a positive 2 charge. since theres two less electrons the radius is smaller. hope i helped :D
Given radius and chord length. What is the height of arc to midpoint of chord?
Draw the circle O, and the chord AB. From the center, draw the radius OC which passes though the midpoint, D, of AB. Since the radius OC bisects the chord AB, it is perpendicular to AB. So that CD is the required height, whose length equals to the difference of the length of the radius OC and the length of its part OD. Draw the radius OA and OB. So that OD is the median and the height of the isosceles triangle AOB, whose length equals to √(r2 - AB2/4) (by the Pythagorean theorem). Thus, the length of CD equals to r - √(r2 - AB2/4).
How do you find the diameter if i have the circumference?
Radius: rDiameter: dCircumference: Cd = 2rC = 2 Pi r = Pi dWhat_is_the_formula_for_finding_diameterSo make it c=Pi*dd=c/Pi
