For quadrilateral ACDF to be a parallelogram, what needs to be congruent to

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MarishaTucker

27.04.2022

Mathematics

To find the answer, we can use the Pythagoras theorem, where:

$\sqrt{a^{2}+ b^{2} } =c^{2}$

Where a and b is the side length and c is the diagonal.

In this case:

$\sqrt{56^{2} +56^{2} } \\ =\sqrt{6272} \\ =79.19596... \\ =79.2(correct to 3 sig. fig.)$

Therefore, the answer is 79.2cm

Hope it helps!

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