Предмет: Геометрия, автор: isuywusush

Геометрия 7 класс, помогите

Приложения:

isuywusush: Очень срочно

Ответы

Автор ответа: Inke4

Ответ:

D=48°

T=48°

E=84°

Объяснение:

уголD=уголDTE

уголDMT=180°-уголЕМТ=180°-72°=108°

уголD=уголDTE=2*уголDTM

уголD+уголDTN+уголDMT=180°

2*уголDTM+уголDTN+108°=180°

3*уголDTM=72°

уголDTM=24°

уголD=2*уголDTM=2*24°=48°

уголE=180°-уголD-уголDTE

УголE=180°-2*уголD=180°-2*48°=84°

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