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Mathematics 7 Online
OpenStudy (anonymous):

help please! giving medal

OpenStudy (anonymous):

OpenStudy (jhannybean):

Since this is a right triangle, use pythagorean thereorem

OpenStudy (jhannybean):

theorem*

OpenStudy (anonymous):

a^2 + b^2 = c^2?

OpenStudy (jhannybean):

pythagorean theorem: \(c^2 =a^2 +b^2\) \[c=10 ~ , ~ a = 3\]

OpenStudy (jhannybean):

Yes you got it :)

OpenStudy (jhannybean):

So if you have c^2 = a^2 +b^2 and you're solving for b, you will have b^2 = c^2 - a^2

OpenStudy (anonymous):

oh okay thx

OpenStudy (jhannybean):

Then to find just the side of the leg, you take the square root. \[b=\sqrt{c^2-a^2}\]

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