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2015-01-27T20:16:15+08:00

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A plane figure is figure/shape made on a plane

A triangle is a polygon with three angles

Isosceles - Triangle with 2 equal sides
Equilateral - Triangle with 3 equal sides
Scalene - No sides are equal
Right triangle - One angle is 90 degrees
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Isosceles - Triangle with 2 equal sides
Equilateral - Triangle with 3 equal sides
Scalene - No sides are equal
Right triangle - One angle is 90 degrees
2015-01-27T20:43:02+08:00
2. Every triangle has three sides,three altitudes,three medians,and three angle bisector 
3.scalene triangle-no two sides are congruent,isosceles triangle-at least two sides are congruent,equilateral triangle-three sides are congruent,equiangular triangle-all angles are congruent  (the side opposite the right angle of a right triangle is called the HYPOTENUSE)
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