Find the sides of the parallelogram, if its P = 60cm, one of the sides is 12cm Given: ABCD; AB = 12cm; P = 60cm Find: AC; BD; DC.
| November 29, 2020 | education
АD = 12cm
AD = BC = 12cm – by the first sign of a parallelogram
60-12-12 = 38cm – AB + CD
AB = CD = 38: 2 = 19cm – by the first sign of parallelograms
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