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Alecsey [184]
3 years ago
14

Plzzzzzzz help asappp

Mathematics
2 answers:
alexgriva [62]3 years ago
6 0
I think that it’s 9.9
Romashka [77]3 years ago
3 0
9.9
With right triangles you can use the equation a^2 + b^2 = c^2. Since both a and b are 7, that makes it 7^2 + 7^2 = c^2 and from there 49 + 49 = c^2 and then 98 = c^2. Then go find C, you find the square root of 98 which is 9.899494937 or rounded as 9.9

Keep in mind a^2 + b^2 = c^2 only works for right triangles, it won’t work for any other ones.
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I hope this helps you



x=3



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