Answers

2014-12-03T19:37:34+08:00
1. Acute triangle - A triangle with all 3 angles that is less than 90 degrees
2. Right triangle - A triangle that has a 90 degrees angle
3. Obtuse triangle - A triangle with an angle that is more than 90 degrees ^^
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2014-12-03T20:14:36+08:00
kinds of triangle according to angle:
1. Equiangular triangle - all angles are equal
2. Right triangle - one angle is a right angle
3. Acute triangle - the angles are less than 90 degrees
4. Obtuse triangle - has two acute angles and one obtuse (more than 90 degrees) angle

kinds of triangle according to sides:
1. Equilateral triangle - all angles are acute
2. Isosceles triangle - has two equal legs
3. Scalene triangle - has no equal sides

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