2006-11-01 09:56:07 · 8 answers · asked by insanejuggalo9896 1 in Science & Mathematics ➔ Mathematics
Because the diagonal creates two right triangles you can use the Pythagorean theorem to find the length of the other side:
5^2 +x^2 = 9^2
25 + x^2 = 81
x^2 = 56
sqrt of 56 = 7.48
Now that you have the length of the other side you can use the formula area = length x width:
5 x 7.48 = 37.4 feet
2006-11-01 09:59:15 · answer #1 · answered by Anonymous · 1⤊ 0⤋
OK, first you have to solve for the length. Use the Pythagorean Theorem: The width squared, plus the length squared, equals the diagonal squared. So 5^2 + L^2 = 9^2. Solve the two squares: 25 + L^2 = 81. Subtract 25 from each side: L^2 = 56. The area is the length times the width or 5 * root(56). The square root of 56 is 7.48, and 5*7.48 is 37.42. So the area is 37.42 square feet.
2006-11-01 18:01:36 · answer #2 · answered by Amy F 5 · 1⤊ 0⤋
The diagonal is the hypotenuse of a right triangle whose legs are the width & length so:
9^2=5^2+l^2
81=25-l^2
56=l^2
l=7.483
A=wl=5*7.483=37.4ft^2
2006-11-01 18:20:09 · answer #3 · answered by yupchagee 7 · 0⤊ 0⤋
5 feet times 9 feet
2006-11-01 17:59:00 · answer #4 · answered by Anonymous · 0⤊ 2⤋
let b=5 and c=9.
a²+b²=c²
a²=c²-b²
a²=56
a=sqrt(56)
a=2*sqrt(14)
area = a*b
area = 10*sqrt(14)
area = approximately 37.4 square feet
2006-11-01 18:01:15 · answer #5 · answered by Anonymous · 1⤊ 0⤋
a=l*w so a is 5*9=45ft squared
nvm srry lol
2006-11-01 18:04:12 · answer #6 · answered by ggtightend 2 · 0⤊ 1⤋
168.13338752 feet
2006-11-01 18:00:19 · answer #7 · answered by sparkle 2 · 0⤊ 1⤋
i think 14
2006-11-01 17:58:19 · answer #8 · answered by Hawii_luvr 1 · 0⤊ 2⤋