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Mathematics 15 Online
OpenStudy (anonymous):

What is the side lenght b in the triangle? (Triangle Posted below)

OpenStudy (anonymous):

OpenStudy (anonymous):

|dw:1348353238572:dw|

OpenStudy (anonymous):

would it be 8

OpenStudy (anonymous):

no

OpenStudy (anonymous):

The sides don't have to add to the hypotenuse

OpenStudy (anonymous):

This is a right triangle

OpenStudy (anonymous):

how would i figure it out

OpenStudy (anonymous):

So

OpenStudy (anonymous):

\[a^2+b^2 = c^2\]

OpenStudy (anonymous):

You have a = 12 and c = 20

OpenStudy (anonymous):

Then you just solve for b

OpenStudy (anonymous):

it would be 8 if you do 20-12

OpenStudy (anonymous):

\[b = \sqrt{c^2-a^2}\]

OpenStudy (anonymous):

ohh ok so would it be umm.. 2.8

OpenStudy (anonymous):

16

OpenStudy (anonymous):

\[b = \sqrt{400 - 144}\]

OpenStudy (anonymous):

\[b = \sqrt{256} = 16\]

OpenStudy (anonymous):

so 16?

OpenStudy (anonymous):

Yes

OpenStudy (anonymous):

Ty:)

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