Предмет: Геометрия, автор: nichego232

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Автор ответа: ludmilaksenija2005

Объяснение:

СD²=AD•BD

AD=AB-BD=10-6,4=3,6

CD²=3,6•6,4=23,04

СD=√23,04=4,8 cм

АС²=АD•AB=3,6•10=36

AC=√36=6 см

ВС²=ВD•AB=6,4•10=64

BC=√64=8 см

P(АВС)= АС+ВС+АВ=6+8+10=24 см

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