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Posted by on Thursday, July 15, 2010 at 2:26pm.

Which is closest to the length of the diagonal of a square whose sides measure 20 cm?

a.20 cm
b.28 cm
c.40 cm
d.200 cm

  • Pythagorean Theorem - , Thursday, July 15, 2010 at 3:04pm

    Which do you think is the right answer?

    20^2 + 20^2 = c^2

  • Pythagorean Theorem - , Thursday, July 15, 2010 at 3:06pm

    The square on the hypotenuse us equal to the sum of the squares on the other two sides....

    So square the sides to figure out the square on the diagonal side, then you can work out the length of that side.

  • math - , Thursday, February 23, 2012 at 9:17am

    40

  • Pythagorean Theorem - , Tuesday, September 4, 2012 at 8:55am

    40 cm

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