Related Questions

The difference between the radio of bigger difference between circle and smaller circle is 14 and the difference between their sareas is 1056 cm2 . Radius of the smaller circle is .
A 7 cm
B 5 cm
C 9 cm
D 3 cm
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
If the difference between the circumference and diameter of a circle is 60 cm, then the radius 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 radius of the circle is____
A 7cm
B 9cm
C 10cm
D 14cm
If the difference between the circumference and diameter of a circle is 60 cm. then the radius of the circle is
A 7 cm
B 9 cm
C 10 cm
D 14 cm
The difference between the radii of bigger circle and smaller circle is 14 cm and the difference between their areas is 1056 cm2. Radius of the smaller circle is:
A 7cm
B 5cm
C 9cm
D 3cm
The difference between the radii of bigger circle and smaller circle is 14 cm and the difference between their areas is 1056 cm2 . Radius of the smaller circle is _
A 7 cm
B 5 cm
C 9 cm
D 3 cm
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
A square hole is punched out of a circular lamina, the diagonal of the square being the radius of the circle. If ‘r’ is the radius of the circle, the C.G. of the remainder from the corner of the square on the circumference will be
A $$\frac{{{\text{r}}\left( {\pi + 0.25} \right)}}{{\pi - 0.5}}$$
B $$\frac{{{\text{r}}\left( {\pi - 0.5} \right)}}{{\pi + 0.25}}$$
C $$\frac{{{\text{r}}\left( {\pi - 0.25} \right)}}{{\pi - 0.5}}$$
D $$\frac{{{\text{r}}\left( {\pi + 0.25} \right)}}{{\pi + 0.5}}$$
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

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