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OpenStudy (anonymous):
Find the length of a side of a square whose diagonal is 4 cm
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OpenStudy (amistre64):
what do we know about the properties of a square that would help us use the pythag thrm here?
OpenStudy (anonymous):
c^2 = a^2 * b^2 c=diagonal, a and b are the sides. But since this is a square, a and b are equal.
OpenStudy (anonymous):
Now do a little algebra...
OpenStudy (amistre64):
a^2 + b^2 that is :)
OpenStudy (anonymous):
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