0
What is the probability as a fraction that a point chosen at random within a circle of radius 10 cm will be inside a concentric circle of radius 4 cm?
Wiki User
∙ 7y ago
Area circle = π × radius²
Area smaller circle = π × (4 cm)² = 16π cm²
Area larger circle = π × (10cm)² = 100π cm²
→ probability inside smaller circle = area_smaller_circle/area_larger_circle
= 16π cm²/100π cm² = 16/100 = (4×4)/(4×25) = 4/25.
Wiki User
∙ 7y ago
The probability as a fraction that a point chosen at random within a circle of radius 10 cm will be inside a concentric circle of radius 4 cm is the ratio of the area of the smaller circle (4 cm radius) to the area of the larger circle (10 cm radius).
Therefore, the probability is (4^2)/(10^2) = 16/100 = 4/25.
Add your answer:
Earn +20 pts
What circle has the same center point?
A concentric circle.
What fraction of the area of a circle of radius 5 lies between concentric circles of radius 3 and 4?
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.
Circle with the same center?
concentric
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.
How do you find the probability of a random point being chosen in a shaded region in a circle?
The probability of a single point being chosen is 0.The probability of a single point being chosen is 0.The probability of a single point being chosen is 0.The probability of a single point being chosen is 0.
A circle is inscribed in a square with a side length of 4 If a point in the square is chosen at random what is the probability that the point is in the square but not in the circle?
21.5%
What circle has the same center point?
A concentric circle.
What do you call a circle within a circle?
Concentric Circles?
What does a concentric circle look like?
A concentric circle looks like a bullseye or a target. It is a big circle with littler circles inside of it with the same centerponit
Are coplanar circles that have the same center called concentric circles?
Concentric Circle
What fraction of the area of a circle of radius 5 lies between concentric circles of radius 3 and 4?
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.
Circle with the same center?
concentric
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.
What is a circle inside a circle called?
Concentric Circles
What is the concentric circle on which the data is stored?
track
Non concentric circle?
Non concentric circles are circles that do not share the same center point.
