Предмет: Геометрия, автор: арука20023

периметр равнобедренного треугольника равен 12 см, а боковая сторона 5 см. Найдите основание.

Ответы

Автор ответа: maks62

так как треугольник равнобедренный то у него боковые стороны равны следовательно у него 2 стороны по 5. Возьмем основание за х. периметр это сумма всех сторон, значит составим уравнение
5+5+х=12
х=2

Автор ответа: арука20023

не очень то хороший ответ, но спасибо

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2. The Tames is the deepest and the longest of the British rivers.
3. Their total area is over 314 000sq. km.
4. Most of the rivers flow into the North Sea.
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