Предмет: Геометрия, автор: mary12798

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Аноним: Сумма углов прилежащих к боковой стороне трапеции равна 180°

Ответы

Автор ответа: Аноним
1

Ответ:

<B=127°; <D=76°

Объяснение:

Сумма углов прилежащих к боковой стороне трапеции равна 180°

<А+<В=180° отсюда

<В=180°-<А=180°-53°=127°

<С+<D=180° отсюда следует

<D=180°-<C=180°-104°=76°

mary12798: спасибо)
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