Related Questions

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 length of each side of square A is increased by 100 percent to make square B. Again the length of each side of square B is increased by 50 percent to make square C. By what percent is the area of square C greater than the sum of the areas of square A and B?
A 75%
B 80%
C 85%
D 90%
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
ABCD is a square of side 10. AFC is an are of a circle with the center at D and radius 10. AGC is an are of a circle with the center at B and radius 10. Find the area of AFCG/
A 50 -100pie
B 25 -100 pie
C 100-25 pie
D 100-50pie
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
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 ratio of the area of area of a circle to the radius of the radius of the circle is--
A π
B 2π
C π2
D none of these
The length of a rectangle is 6 feet more than the side of a square and the width of the rectangle is 6 feet less than the side of that square. If the area of the square is 64 sq feet, what is the area of the rectangle?
A 20 sq feet
B 30 sq feet
C 40 sq feet
D 28 sq feet
The length of a rectangle is 6 cm more than the side of a square, and the width of the rectangle is 6 cm less than the side of the square. If the area of the square is 86 cm2. what is the area of the rectangle?
A 36 cm2
B 40 cm2
C 50 cm2
D 64 cm2
The length of each of square A is increased by 100 percent to make square B.Again the length of the each side of square B is increased by 50 peacent to make square C.By of the area df square A and B?
A 75%
B 80%
C 85%
D 90%

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