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Трикутники

QuestionAnswer
Сума довжин усіх сторін трикутника- периметр
Якщо два трикутники можна сумістити , то вони рівні
Трикутник, у якого дві сторони рівні, називають рівнобедрений
Трикутник, у якого всі сторони рівні, називають рівносторонній
Рівні сторони рівнобедреного трикутника бічні
Якщо один з кутів трикутника прямий, то трикутник прямокутний
У рівнобедреному трикутнику бісектриса кута при вершині є медіаною і висотою
Created by: Lena Dmitrenko
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