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bogdanovich [222]
3 years ago
15

If a right triangle has equal legs, and the hypotenuse is 26 ft. how long is each leg (leave answer in radical form)

Mathematics
2 answers:
Ksenya-84 [330]3 years ago
5 0

If a right triangle has equal legs, it is by definition a 45-45-90 triangle. So, the two sides would be x and the hypotenuse would x\sqrt{2}. However, we know the hypotenuse, and we do not see a \sqrt{2} anywhere. That means it has already been multiplied by it, so to get the lengths of the sides we simply divide 26 by \sqrt{2}. If you have to rationalize the denominator, the answer will be \frac{26}{\sqrt{2}}  = \frac{26\sqrt{2}}{2}  = 13\sqrt{2}

Marta_Voda [28]3 years ago
5 0

\boxed {\text{pythagorean theorem :}a^2 + b^2 = c^2}

Let the leg be x.

x² + x² = 26²

-

Solve x:

x² + x² = 26²

<u><em>Combine like terms:</em></u>

2x² = 676

<u><em>Divide both sides by 2:</em></u>

x² = 338

<u><em>Square root both sides:</em></u>

x= √338

<u><em>Put it in radical form:</em></u>

x = 13√2

-

Answer: 13√2

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