Asked by david

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
Answered by Ms. Sue
Which do you think is the right answer?

20^2 + 20^2 = c^2

Answered by GuruBlue
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.
Answered by helen
40
Answered by Ben
40 cm
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