Related Questions

If the circumference of a circle is 4m, then the ratio of circumference of the circle to the diameter of the circle is -
A 2π
B 4
C π
D 4π
The magnitude of the area of a circle is seven times that of its circumference. What is the circumference (in units) of the circle ?
A 88 units
B 132 units
C 616 units
D Cannot be determined
E None of these
The area of smallest square that can circumscribe a circle of area 616 cm2 is -----
A 1936 cm2
B 784 cm2
C 196 cm2
D 484 cm2
The circumference of the circle and teh perimeter of the square is equal and the ratio between the diameter of the circle and the side of the square is 7 :11 . What is the area of the circle ?
A 154 cm2
B 160 cm2
C 132 cm2
D Can't be determined
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 sum of the circumference of a circle and the perimeter of a rectangle is 130 cm. The area of the rectangle is 104 cm2 and the length of the rectangle is 13 cm. What is the area of the circle ?
A 516 cm2
B 616 cm2
C 816 cm2
D 216 cm2
If the ratio of the area of a sector to the area of the circle is 3 : 5, what is the ratio of the length of the are in the sector to the circumference of the circle?
A 35
B 27
C 13
D 12
If the ratio of the area of a sector to the area of the circle is 3:5. What is the ratio of the legth of theare in the sector to the circumference of the circle?
A 3/5
B 2/7
C 1/3
D 1/2
If the ratio of the area of a sector to the area of the circle is 3: 5, What is the ratio of the length of the arc in the sector to the circumference of the circle?
A 3/5
B 2/7
C 1/3
D 1/2
A right angled triangle , whose perpendicular sides measure 1.8 cm and 2.4 cm ,is inscribed in a circle. What is the circumference of the circle (in cm)?
A π
B 3π
C 2π
D None of these

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