По т.Пифагора
с²=а²+b²
c²=8²+15²=64+225=289
c=17(cм)
Р=8+15+17=40 см
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По т.Пифагора
с²=а²+b²
c²=8²+15²=64+225=289
c=17(cм)
Р=8+15+17=40 см