Sunday

January 25, 2015

January 25, 2015

Posted by **raven** on Thursday, July 24, 2008 at 11:20pm.

- algebra and trigonometry -
**drwls**, Friday, July 25, 2008 at 1:11amLet the diagonal be c and the sides a and b

b = sqrt (c^2 - a^2) = sqrt(25-a^2)

Perimeter = 2a + 2b = 2a + 2sqrt (25-a^2) = 14

14 - 2a = 2 sqrt (25-a^2)

196 - 56a + 4a^2 = 4(25-a^2) = 100 -4a^2

8a^2 -56a +96 = 0

a^2 -7a + 12 = 0

(a-3)(a-4) = 0

The side lengths are 3 and 4

**Answer this Question**

**Related Questions**

Geometry - The perimeter of a rectangle is 102 inches, and the length of the ...

math - The perimeter of a rectangle is 68 f. Find the dimensions of the ...

Algebra 2 - The perimeter of a rectangle is 122m. The length of the rectangle is...

Geometry - The length of a rectangle is 1cm longer than its width. If the ...

algebra , help - Can someone help me set up the equations thanks. Directions: ...

math ,correction - Directions: Solve each of the following problems. Be sure to ...

math 9th grade - the perimeter of a rectangle is 56 inches> the width of the ...

Algebra - The perimeter of a rectangle is 66 m the length is 9m more than twice ...

algebra - A rectangle has a length that is 2 less than 3 times the width. If the...

basic geometry - A rectangle has width the same asa a side of a square whose ...