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Mathematics 18 Online
OpenStudy (anonymous):

How do I solve this? For the right triangle shown, the lengths of two sides are given. Find the third side. Leave your answers in simplified, radical form. Type your answer in the answer box provided a = 40, b = ?, c = 41

OpenStudy (anonymous):

OpenStudy (amistre64):

since it is a right triangle; id assume you solve it with the pythag thrm

OpenStudy (amistre64):

hence: a^2 + b^2 = c^2

OpenStudy (anonymous):

I keep getting 3281

OpenStudy (amistre64):

b = sqrt(c^2-a^2) = sqrt(41^2 - 40^2) so yeah, youre a teeny bit off

OpenStudy (anonymous):

Oh, so I subtract 40 sqred from 41 sqrd?

OpenStudy (amistre64):

yes, we solve for "b" in this case :)

OpenStudy (anonymous):

would it be 9?

OpenStudy (amistre64):

dunno, id have to consult a calculator

OpenStudy (amistre64):

sqrt(81), so yeah; 9 looks good

OpenStudy (anonymous):

okay thanks.

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