Friday

August 29, 2014

August 29, 2014

Posted by **TY** on Sunday, February 19, 2012 at 8:43pm.

- math/geometry -
**Steve**, Sunday, February 19, 2012 at 9:12pmcenter the door way so that half the base is 3+x feet. The area of the triangle is 98, so the height h = 98/(3+x)

using similar triangles,

8/x = h/(x+3)

8(x+3) = hx

8(x+3) = 98/(x+3) * x

4x^2 - 25x + 36 = 0

(4x-9)(x-4) = 0

Looks like any x from 9/4 to 4 will work. So, the dimensions can vary from

10.5 ft wide x 18 2/3 ft high

to

14 wide x 16 ft high

**Related Questions**

main ideas - what purpose dose question 3-6 serve in the paragragh . Myfamily ...

pre-algebra - When designing a pattern, Erica rotated a triangle 90 degrees ...

math - Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) ...

math - Three men (Tom, peter, and jack)and three women (Eliza, Anne, and Karen) ...

Math - An isosceles triangle and a rectangle share a base. The area of the ...

geometry - a piece of rectangular sheet metal is 20 in. wide. It is made into a ...

maths - A large canal will have a cross-section in the shape of an isosceles ...

math - M and N are the midpoints of the sides of a square. What is the ratio of ...

Math - I am supposed to find the area of the shaded section of a circle. The ...

geometry - abcd is a square picture frame. efgh is a square inscribed within ...