Предмет: Геометрия, автор: 1488polina1488

в основании равнобедренного треугольника ABC отмечены точки P и Q , что AP=CQ. Докажите, что треугольник PBQ - равнобедренный

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Автор ответа: lisaalexeeva1

тр.АВС - р/б, след., АВ=ВС, угол А=уголС; АР=QC по усл.
след. тр.АВР=тр.СВQ
след. ВР=ВQ, след, PBQ - р/б.

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