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What fraction of the area of a circle of radius 5 lies between concentric circles of radius 3 and 4?
Wiki User
∙ 14y ago
The area of a circle with radius 5 is 25 pi. Concentric circles with radius 3 and 4 have areas of 9 pi and 16 pi. The concentric circle with radius four consumes the circle with radius 3. 25 pi minus 16 pi leaves 9 pi of the circle with radius 5 left over. 16 pi is slightly over three-fifths of the circle with radius 5.
Wiki User
∙ 14y ago
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Concentric circles on the disk surface?
Concentric circles, are circles within circles. Each concentric circle on the surface of a disk represents a track, the narrower the circle is, the more data can be stored on the disk.
Non concentric circle?
Non concentric circles are circles that do not share the same center point.
What is the use of concentric circles?
The use of concentric circles is most commonly used on a target. Concentric circles are placed around a target in which each concentric circle has the same center.
What is a concentric circle?
"Concentric" means to have a common center. Concentric circles are circles of different sizes that all have the same center -- like a bullseye target.
Is the center of a circle the point of intersection for two concentric circles?
Concentric circles are the circles with the same center therefore they do not cross with each other as the "center is not considered a point on the circle". An exception would be two circles that are concentric and have the same radius, in which case the circles are indistinct and every point of the circles is an intersection.
Are coplanar circles that have the same center called concentric circles?
Concentric Circle
Concentric circles on the disk surface?
Concentric circles, are circles within circles. Each concentric circle on the surface of a disk represents a track, the narrower the circle is, the more data can be stored on the disk.
Non concentric circle?
Non concentric circles are circles that do not share the same center point.
What is the use of concentric circles?
The use of concentric circles is most commonly used on a target. Concentric circles are placed around a target in which each concentric circle has the same center.
What do you call a circle within a circle?
Concentric Circles?
Locus of a point equidistant from two concentric circles?
Another circle midway between the originals.
What is a concentric circle?
"Concentric" means to have a common center. Concentric circles are circles of different sizes that all have the same center -- like a bullseye target.
Is the center of a circle the point of intersection for two concentric circles?
Concentric circles are the circles with the same center therefore they do not cross with each other as the "center is not considered a point on the circle". An exception would be two circles that are concentric and have the same radius, in which case the circles are indistinct and every point of the circles is an intersection.
What is a circle inside a circle called?
Concentric Circles
Can a tangent circle be concentric?
No; tangent circles touch each other at one point but concentric circles cannot not touch.
Is concentric circle and congruent circle are they same?
No. Concentric circles have the same centre but not [usually] the same radius. Congruent circles have the same radius, but not [usually] the same centre. If you have two concentric congruent circles one will be exactly on top of the other.
Is it a circle is named by its center?
It can be, unless there are concentric circles.
