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Mathematics 8 Online
OpenStudy (anonymous):

How do I find the missing length?

OpenStudy (anonymous):

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OpenStudy (anonymous):

a=_____, b= 3, c= 7

hartnn (hartnn):

Hello Mrs. Einstein :) do you know pythagoras theorem ?

OpenStudy (anonymous):

Hello :) yes

hartnn (hartnn):

could you apply that theorem here ?

hartnn (hartnn):

yes, c^2 = a^2+b^2

OpenStudy (anonymous):

Yes I tried but I keep getting the wrong answer.

hartnn (hartnn):

\(a = \sqrt {7^2 - 3^2 } \\ a = \sqrt {49-9} = \sqrt {40} = 6.324\)

OpenStudy (anonymous):

Okay thanks :)

hartnn (hartnn):

welcome ^_^

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