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Mars2501 [29]
2 years ago
6

I'm horrible at this so can I please get help, the rest says "solve for a. a=

Mathematics
1 answer:
Inessa05 [86]2 years ago
8 0

Answer:

a = \sqrt{63}

Step-by-step explanation:

Using Pythagoras' identity in the right triangle.

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides, that is

a² + 9² = 12²

a² + 81 = 144 ( subtract 81 from both sides )

a² = 63 ( take square root of both sides )

a = \sqrt{63}

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olchik [2.2K]
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3 years ago
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You just need to try with all of the pair f.ex
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6 0
3 years ago
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artcher [175]

Answer:

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3 0
2 years ago
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Sergeeva-Olga [200]

Answer:

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