15 inches? Give your answer rounded to the nearest inch.
2007-09-08 06:07:15 · 5 answers · asked by Kevin P 1 in Science & Mathematics ➔ Mathematics
Let length of stick = L inches
L² = 9 ² + 12 ² + 15 ²
L² = 450
L = 21 inches (to nearest whole number)
2007-09-11 21:05:48 · answer #1 · answered by Como 7 · 0⤊ 0⤋
The stick's length will be √(9² + 12² + 15²)
L = √(81 + 144 + 225)
L = √(450) = √(9 * 50)
L = 3 √(50) inches
2007-09-08 06:16:41 · answer #2 · answered by anobium625 6 · 0⤊ 1⤋
= √9^2 + 12^2 + 15^2
= √ 81 + 144 + 225
= √ 450
= 21.21
Answer: 21.21 inches
2007-09-11 23:07:33 · answer #3 · answered by Jun Agruda 7 · 3⤊ 0⤋
Use the three-dimensional distance formula, which is an extension of the Pythagorean formula.
d = sqrt(9² + 12² + 15²)
d = sqrt450
d = 21.2132 in.
To the nearest inch, the longest possible stick which fits is 21 inches long.
2007-09-08 06:15:18 · answer #4 · answered by computerguy103 6 · 0⤊ 1⤋
15 inches is correct (hypotenuse = square root of the sum of length squared and width squared)
You didn't give the height of 'the box' (you said rectangular box but didn't give the third dimintion) or it will be even longer accordingly!
2007-09-08 06:20:23 · answer #5 · answered by Mikel 4 · 0⤊ 0⤋