If my monitor measured 17 in. diagonally and the width is 15 inches how do I do a Pythagorean Theorem to find the horizontal length?
2007-07-26 02:26:50 · 5 answers · asked by DEE H 1 in Science & Mathematics ➔ Mathematics
hor = sqr(17^2 - 15^2)
hor = sqr(289 - 225)
hor = sqr(64)
hor = 8
2007-07-26 02:32:30 · answer #1 · answered by CPUcate 6 · 2⤊ 0⤋
Pythagorean Theorem
c² = a² + b²
Transpose a²
c² - a² = a² + b² - a²
c² - a² = b². . .â. .use this formula
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Let
c² = Diagonal
a² = width
b² = length
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â(17)² - (15²) = âb²
â289 - 225 = âb²
â64 = âb²
8 = b
The length is 8 inches
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2007-07-26 11:16:49 · answer #2 · answered by SAMUEL D 7 · 0⤊ 0⤋
Pythagorus Theorem is such that square of diagonal (hypotenuse) is equal to the sum of the squares of the two other sides. So in this case the remaining side is the square of the hypotenuse minus the square of the other side.
ie:
17^2 - 15^2 = 8^2
So 8 inches.
2007-07-26 09:35:01 · answer #3 · answered by Anonymous · 1⤊ 0⤋
horizontal length = sqrt(diagonal^2 - vertical^2)
= sqrt(17^2-15^2) = sqrt(64) =8
2007-07-26 09:34:02 · answer #4 · answered by Anubarak 3 · 2⤊ 0⤋
(Hypotenuse)2=(side)2+(side)2
17*17=(15*15)+x2
x2=289-225=64
x=8
2007-07-26 09:34:36 · answer #5 · answered by Anonymous · 1⤊ 0⤋