i got 445 29 or 14.5
2007-01-02 12:27:15 · 10 answers · asked by Chris FIGggggg 1 in Science & Mathematics ➔ Mathematics
hypotenuse = square root of the sum of the squares of the other two sides.
So hypotenuse = sqrt(11^2+18^2)
= sqrt (121 + 324)
= sqrt (445)
= 21.1
2007-01-02 12:33:23 · answer #1 · answered by martina_ie 3 · 0⤊ 0⤋
Since A² + B² = C² and since you know that the sides are 11 and 18.
Then 11² + 18² = C²
or 121+324 = C²
or 455 = C²
or â455 = 21.2368
So the Hypotenuse = 21.2368 or whatever place you need to round to.
2007-01-02 20:38:13 · answer #2 · answered by JSpielfogel 3 · 0⤊ 0⤋
11 squared plus 18 squared = hypotenuse squared
therefore hypotenuse = root of (18 squared + 11 squared)
324 + 121 = 445
root of 445 = 21.095 = hypotenuse
2007-01-03 02:27:48 · answer #3 · answered by David C 2 · 0⤊ 0⤋
The answer is the square root of 445. This is not a perfect square and equals 21 plus an irrational decimal
2007-01-02 20:32:25 · answer #4 · answered by serpent 2 · 0⤊ 0⤋
The answer is â(11^2 + 18^2)
â(121 + 324)
â445
21.1
2007-01-02 20:31:04 · answer #5 · answered by Tom :: Athier than Thou 6 · 0⤊ 0⤋
a² = b² + c²
a² = 18² + 11²
a² = 324 +121
a² = 445
a = \/445
a = 5\/17
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2007-01-02 20:35:19 · answer #6 · answered by aeiou 7 · 0⤊ 0⤋
square root of 445 is 21.09502311
2007-01-02 20:31:03 · answer #7 · answered by Evermore 3 · 0⤊ 0⤋
21.10 is the right answer : 11^2 + 18^2 = 21.1^2
2007-01-02 20:30:30 · answer #8 · answered by jackie 1 · 0⤊ 0⤋
11^2+18^2 = x^2
121 + 324 = x^2
445 = x^2
x = 21.095..........
2007-01-02 20:34:12 · answer #9 · answered by danjlil_43515 4 · 0⤊ 0⤋
rt(121+324)=rt445
you are right rt445
=21.09
2007-01-02 20:31:16 · answer #10 · answered by raj 7 · 0⤊ 0⤋