Ответ:
Р(∆АВС)=34см
Объяснение:
S(∆ABC)=½*CH*AB; →
AB=2*S(∆ABC)/CH=2*72/9=16см
S(∆ABC)=½AK*BC; →
BC=2*S(∆ABC)/AK=2*72/12=12см
S(∆ABC)=½*BM*AC; →
AC=2*S(∆ABC)/BM=2*72/24=6см
Р(∆АВС)=АВ+ВС+АС=16+12+6=
=34см
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Ответ:
Р(∆АВС)=34см
Объяснение:
S(∆ABC)=½*CH*AB; →
AB=2*S(∆ABC)/CH=2*72/9=16см
S(∆ABC)=½AK*BC; →
BC=2*S(∆ABC)/AK=2*72/12=12см
S(∆ABC)=½*BM*AC; →
AC=2*S(∆ABC)/BM=2*72/24=6см
Р(∆АВС)=АВ+ВС+АС=16+12+6=
=34см