Related Questions

If the radious of a circle is increased by 6%, then the area of the circle is increased by-
A 3.6 π
B 6.5 π
C 12.36 %
D 36 π
If the difference between the circumference and diameter of a circle is 60 cm, then the radious of the circle is .
A 7 cm
B 9 cm
C 10 cm
D 14 cm
If the difference between the circumference and diameter of a circle is 60 cm , then the radious of the circle is-
A 7 cm
B 9 cm
C 10 cm
D 14 cm
A circle whose center is at origin passes through point (4, 3). The length of the radious of this circle B is?
A 6
B 7
C 5
D 8
An equilateral triangle is inscribed in a circle, each side measuring 15 cm. What is the radious of this circle?
A 53
B 5
C 15
if the radious of cylinder is halved and height is doubled, then what will be the curved surface area
A increase by one
B the same
C double
D triple
A person rides a bicycle round a circular path of radius 50 m. The radious of the wheel of the bicycle is 50 cm. The cycle comes to the starting point for the first time in 1 hour. what is the number of revolutions of the revolutions of the wheel in 15 minutes?
A 20
B 25
C 30
D 35
The radius of circle A is r, and the radius of circle B is 3/4r. What is the ratio of the area of circle A to the area of circle B?
A 16 to 9
B 9 to 16
C 1 to 4
D 4 to 3
The area of circle A is 6.25 sq. in. If radius of the circle is doubled, what is the new area of circle A in sq. in?
A 5 pi
B 12.5 pi
C 25 pi
D 39.0625 pi
In the picture area of the square ABCD is 196 square miles.O is the center of the circle of the circle.What will be the area of the circle in square miles ?
A 100π
B 49π
C 144π
D 64π

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