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Types of Triangles
Properties of different types of triangles.
Type of triangle | Properties |
---|---|
Scalene triangle | Has three unequal sides. |
Isosceles triangle | Has two equal sides. Base angles are equal. |
Equilateral triangle | Has three equal sides. All angles are equal. Each interior angle is 60°. |
Acute-angled triangle | Has three acute angles. |
Right-angled triangle | Has one right angle. |
Obtuse-angled triangle | Has an obtuse angle. |
Scalene obtuse-angle triangle | Has three unequal sides and one obtuse angle. |
Isosceles right-angle triangle | Has two equal sides and one right angle. Base angles are equal and each is 45°. |