Предмет: Геометрия, автор: khibukhinavs

СРОЧНО РЕШИТЕ ПОЖАЛУЙСТА ДАМ 35 БАЛЛОВ

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Ответы

Автор ответа: TanomiU
0

Ответ:

Объяснение:

Пусть АВ =ВЕ = х(см), тогда

ВЕ = ЕС = х /2(см)

1) P(abe) = AE + АВ + ВЕ = AE + x +x/2  =AE +³/₂ x

P(aec) = AE + AC + EC =  AE + 8+ x/2

P(abe) > P(aec) на 2см, следовательно,

AE +³/₂ x - ( AE + 8+ x/2) = 2

AE +³/₂ x -  AE - 8 - x/2 = 2

x - 8 = 2 → x = 2 + 8 → x = 10(см)

Р(abc) = 8 + 2*10 = 28(см)

2) P(aec) > P(abe) на 2см

AE + 8+ x/2 - (AE +³/₂ x) = 2

AE + 8 +x/2 - AE - ³/₂ x = 2

8 - x = 2

x = 8-2 =6(см)

Р(abc) = 8 + 2*6 = 20(см)

Задание 2.

Дано: ΔАСD - ΔBCD  ????

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