How to find length of a diagonal of a parallelogram
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Step-by-step explanation:
To find the length of the diagonal, we can consider only the triangle ABD and use the law of cosines to find the length of the unknown side.
The Law of Cosines:
c2=a2+b2−2abcos(C)
Where c is the length of the unknown side, a and b are the lengths of the known sides, and C is the angle between a and b.
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