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Mathematics 13 Online
OpenStudy (anonymous):

The sides of a parallelogram are 55 cm and 71 cm. Find the length of each diagonal if the longer angle measures 106 degrees.

OpenStudy (campbell_st):

well here is a diagram |dw:1361780786568:dw| use the law of cosines. now for the other diagonal |dw:1361780858317:dw| again, use the law of cosines

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