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OpenStudy (anonymous):
Which of the following represents the length of this trapezoid? sqrt (a+b)^2 - c^2 sqrt (a-b)^2 - c^2 sqrt (a-b)^2 + c^2 sqrt (a+b)^2 + c^2
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OpenStudy (anonymous):
OpenStudy (anonymous):
I'm like 90% sure it's A but I don't know why or ho w
OpenStudy (welshfella):
i'[m confused What to you mean by the length of the trapezoid? Its a 2 dimensional figure
OpenStudy (anonymous):
the length of the diagonal of the trapezoid oops
OpenStudy (welshfella):
oh right!
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OpenStudy (welshfella):
well use pythagoras of course |dw:1454526168760:dw|
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