how do you find the diagonals of a rectangle?
the length of a rectangle is 3cm and the width is 2cm find the length of the diagonals
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tip:
Let d be the diagonal of a rectangle
then
d^2 = w^2 + L^2
d^2 = (2)^2 + (3)^2
d^2 = 4 + 9 = 13
d = sqrt(13) = 3.61 cm
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Pythagorean theorem: 3^2 + 2^2 = c^2
9 + 4 = c^2
c = SQUAREROOT of 13
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