Sunday

December 21, 2014

December 21, 2014

Posted by **Gabby** on Monday, May 10, 2010 at 10:08am.

- Math -
**Reiny**, Monday, May 10, 2010 at 2:33pmrectangle:

width = x

length = 3x

perimeter = 8x

area = 3x^2

square:

side y

perimeter = 4y

area = y^2

perimeters are the same --> 4y = 8x

y = 2x

area of square is 4 more than area of rectangle

y^2 = 3x^2 + 4

4x^2 = 3x^2 + 4

x^2 = 4

x = 2, then y = 4

rectangle:

width = 2

length = 6

perimeter = 16

area = 12

square:

side = 4

perimeter = 16

area = 16 , which is 4 more than that of the rectangle

everything checks!

- Math -
**Joseph**, Monday, May 10, 2010 at 5:27pmcool

**Answer this Question**

**Related Questions**

math - A square has the same area as a rectangle whose longer side is 2 times ...

math - a rectangle is 27 m long and 3 m wide waht is the length of an side of a ...

2nd grade math - If you have a rectangle with 24 square units 3 lines down 8 ...

algebar - A rectangle is 5 times as long as it is wide. If the area is 125 ...

basic geometric - 10. a rectangle has width the same as a side of a square whose...

baasic geometry - A rectangle has width the same as side of a square whose ...

4th grade - Two rectangles have the same shape. The perimeter of the larger one ...

Math - The length and width of a rectangle are (x+4)cm and xcm respectively. ...

basic geometry - these is my homework, and I would like for some to tell me if I...

math - a rectangle has length which is twice the width. if the diagonal is the 5...