1) 10 отрезков, а именно AB, AC, AD, AE, BC, BD, BE, CD, CE, DE.
2) 2+2 = 4см
3) 2+2+2 = 6см
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1) 10 отрезков, а именно AB, AC, AD, AE, BC, BD, BE, CD, CE, DE.
2) 2+2 = 4см
3) 2+2+2 = 6см