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Mathematics 14 Online
OpenStudy (anonymous):

can anyone help me with a pythagrean therom problem

OpenStudy (amistre64):

sure

OpenStudy (anonymous):

ok so the length a is 1m and the hypotenuse is 2\[\sqrt{5}\]

OpenStudy (amistre64):

\[a^2 +b^2 = c^2\] \[1^2 + b^2 = 2^2\]

OpenStudy (amistre64):

\[b^2 = 4-1\] \(b = \sqrt{3}\) right?

OpenStudy (anonymous):

hypotenuse is 2 \[\sqrt{5}\]

OpenStudy (amistre64):

work it out, and ill show you where you are going wrong at... since I already see it :)

OpenStudy (anonymous):

the hypotenuse is two square root of 5

OpenStudy (amistre64):

ohhh... \(2\sqrt{5}\) is the hyp

OpenStudy (anonymous):

yes

OpenStudy (amistre64):

well :) that changes it some

OpenStudy (amistre64):

b^2 = hyp^2 - a^2 \[b^2 = (2\sqrt{5})^2-1\] \[b^2 = 4(5)-1\] \[b^2 = 19\] \[b = \sqrt{19}\]

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