of the missing leg...Please need helpp
2007-08-09 19:20:38 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
Use the Pythagorean theorem:
a^2 + b^2 = c^2
where a and b are the legs, and c is the hypotenuse.
84^2 + b^2 = 91^2
7056 + b^2 = 8281
b^2 = 1225
b = 35
2007-08-09 19:22:38 · answer #1 · answered by lithiumdeuteride 7 · 1⤊ 0⤋
Let the remaining length be x.
By Pythagoras' Theorem,
x^2 + 84^2 = 91^2
x^2 = 8281 - 7056
x = 35 or x = -35
NOTE: x = -35 rejected because length cannot be negative.
Therefore, the length of the remaining side is 35 units.
2007-08-10 04:09:10 · answer #2 · answered by Anonymous · 0⤊ 0⤋
a² + b² = c²
84² + b² = 91²
7056 + b² = 8281
b² = 1225
b = 35
2007-08-10 03:25:27 · answer #3 · answered by The Glorious S.O.B. 7 · 0⤊ 0⤋
A²+B²=C²
C is the hypotenuse.
(84)²+B²=(91)²
7056+B²=8281
B²=1225
B=â1225=35
2007-08-10 02:27:59 · answer #4 · answered by Anonymous · 0⤊ 0⤋
Use the pythagorean theorem.
a^2+b^2=c^2
84^2+b^2=91^2
7056+b^2=8281
-7056 -7056
b^2=1225
Then find the square root.
b=35
2007-08-10 02:25:32 · answer #5 · answered by smexibiotch3 2 · 0⤊ 0⤋
I forget... but it has to be less than 91 when added to 84 since the hypotenuse is the longest side (2 sides of a triangle cant add up to more than the longest side). So its somewhere between 1 and 7. I think. Are you sure you have the question right?
2007-08-10 02:28:27 · answer #6 · answered by Anonymous · 0⤊ 0⤋
the answer is 35
2007-08-10 02:28:46 · answer #7 · answered by 10-4 bsn 1 · 0⤊ 0⤋
Use the pythagorean theorem.
2007-08-10 03:12:09 · answer #8 · answered by Termite 2 · 0⤊ 0⤋