Basic Types of Triangles

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Basic Types of Triangles by Mind Map: Basic Types of Triangles

1. Right triangle

1.1. A right-angled triangle (also called a right triangle) is a triangle with a right angle (90°) in it.

2. Equilateral triangle

2.1. Three equal sides Three equal angles, always 60°

3. Isosceles triangle

3.1. Two equal sides Two equal angles

4. Scalene triangle

4.1. The Scalene Triangle has no congruent sides, each side must have a different length

5. Acute angle

5.1. All angles are less than 90°

6. Obtuse triangle

6.1. The Obtuse Triangle has an obtuse angle (an obtuse angle has more than 90°