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Types of Triangles

Properties of different types of triangles.

Type of triangleProperties
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°.
Created by: edugan_hoh