Предмет: Геометрия, автор: monsterdimos56

знайдіть площу трапеції основи якої дорівнюють 21 і 30 а бічні сторони 12 і 15 см

Ответы

Автор ответа: Аноним

8

Відповідь: 306 од2

Пояснення: 2 способи

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