Предмет: Геометрия, автор: Аноним

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1) объясните какая фигура называется трейгольником. Начертите трейгольник и покажите его стороны , вершины и углы. Что такое периметр трейгольника

2)Какие трейгольники называются равными?

3)Что такое теорема и доказательство теоремы?

4)Объясните , какой отрезок называется перпендикуляром из данной точки к данной точке

5)какой отрезок называется медианой треугольника? Сколько медиан имеет трейгольник?

6)КАкой отрезок называется биссектрисы треугольника? Сколько биссектрис имеет трейгольник?

7)Какой отрезок называется высотой треугольника ? сколько высот имеет треугольник?

Ответы

Автор ответа: lovemuse988

треугольник это геометрическая фигура состоящаяя из трех точек не лежащих на одной прямой

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