Предмет: Геометрия, автор: vanchikvolanchik

6. Знайдіть бічну сторону рівнобічної трапеції, якщо середня лінія дорівнює 12 см, а периметр - 64 см.​

Ответы

Автор ответа: iva54
0

Відповідь:

5 см

Пояснення:

Середня лініія трапеції дорівнює півсумі основ.

12•2 = 24 (см) сума довжин основ трапеції;

64-24 = 40 (см) сума довжин бічних сторін.
у рівнобічній трапеції бічні сторони рівні.
бічна сторона становить:

40:2 = 20 (см)

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