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ruslelena [56]
3 years ago
7

Please help me thanks :))

Mathematics
1 answer:
Andrei [34K]3 years ago
5 0
Hello!

You use the Pythagorean Theorem to solve this

a^{2} + b^{2} = c^{2}

Put in the values it tells you

a^{2} + 1^{2} =   \frac{5}{4} ^{2}

Square the numbers

a^{2} + 1 =  \frac{25}{16}

Subtract 1 from both sides

a^{2} =  \frac{9}{16}

Take the square root of both sides

a =  \frac{3}{4}

The answer 3/4 or 0.75

Hope this helps!
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