ac is 7 if b is 3 and a is 2 a nd c is 5
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Use the cosine rule: a2 = b2+c2-2bc*cos A BC2 = AB2+AC2-2*AB*AC*cos A BC2 = 32+52-2*3*5*cos 57 BC2 = 17.66082895 BC = 4.20247887 cm in length
That depends on the value of CD and the perimeter of the quadrilateral out lined in the question
The probability of ac and bc is 1/5.
40?