Предмет: Геометрия, автор: ochkovskyt

ПОМОЖІТЬ ПЖ СРОЧНО! даю 40 балів

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Ответы

Автор ответа: zmeura1204

Відповідь:
ВС=10см
АМ=34см

Розв'язання:
∆АКВ- прямокутний трикутник;
∠ВКА=90°; ∠ВАК=60°; ∠АВК=30°;
АК- катет проти кута 30°;
АК=АВ/2=24/2=12см.
АК=РМ=12см,т.щ. трапеція рівнобедрена.
(ВС+КР)=(ВС+АМ)-2*АК=
=44-2*12=44-24=20см.
ВС=КР.
ВС=(ВС+КР)/2=20/2=10см.
АМ=44-10=34см

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