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Find the length of the longer diagonal of a parallelogram if the sides are 6 inches and 8 inches and the smaller angle is 60^(@)

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Answer Text

811127

Answer :
C
Solution :
Law of cosines: `d^(2)=36+64-96cos120^(@).d^(2)=148`. Therefore, d=12. <br> <img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/BAR_SAT_MAT_L2_C06_E01_008_S01.png" width="80%">

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