Wednesday

October 1, 2014

October 1, 2014

Posted by **mathematical problem** on Sunday, August 21, 2011 at 4:35am.

- math -
**Reiny**, Sunday, August 21, 2011 at 9:44amarea of two circles varies directly as the square of their radii or the square of their perimeters.

so ratio of areas = (1.25)^2 / 1 = 1.5625

it will be 156.25% of the old one.

so the area increases by 56.25%

**Answer this Question**

**Related Questions**

math - if perimeter of a square is increased by 25%.what will be the increased ...

math - a square has a length of 5 inches. Then it is increased by 20%. Then the ...

math - If each edge of a cube is increased by 2 inches, the A. volume is ...

mat117/algebra - If the sides of a square are increased by 3 cm, the area is ...

7TH GRADE MATH - how do i do these: 1.100 increased by 72% 2. 10 increased by 30...

Math - If the width of a rectangle is increased by 2 inches, the area is 140 ...

college algebra - if the altitude and the base of a triangle are each increased ...

Maths - A rectangle has legth & width in the ratio of 3:2.If the length is ...

math - if the sides of a square are increased by 5 cm the area of the new square...

Math - The sides of a square are all increased by 3 cm. The area of the new ...