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OpenStudy (anonymous):
A square has a side length of 20cm. If a diagonal is drawn, what is the length of the diagonal? Give the exact value (radical form), not an approximation. Use special triangles.
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OpenStudy (anonymous):
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OpenStudy (anonymous):
uhm, elaborate please?
OpenStudy (anonymous):
A square is simply a combination of two 45-45-90 triangles with legs 20
OpenStudy (anonymous):
Pythagorean theorem comes to your rescue.
OpenStudy (anonymous):
Thus the digaonal is in effect the hypothenuse of either triangle
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OpenStudy (anonymous):
As foolish for math said, we simply apply the pyhthagorean theorme
OpenStudy (anonymous):
Baha, I understand now thank you very much.
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