Geometry

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Geometry by Mind Map: Geometry

1. Classifying Triangles According to Angles

1.1. 1. Acute Triangle

1.1.1. A triangle that has 3 acute angles. (3 angles less than 90 degrees)

1.1.1.1. Real World Example of an "Acute Triangle"

1.2. 2. Right Triangle

1.2.1. A triangle that has exactly 1 one right angle. (1 angle measuring exactly 90 degrees)

1.2.1.1. Real World Example of a "Right Triangle"

1.3. 3. Obtuse Triangle

1.3.1. A triangle that has exactly 1 obtuse angle. (1 angle measuring greater than 90 degrees, but less than 180 degrees)

1.3.1.1. Real World Example of an "Obtuse Triangle"

2. Classifying Angles

2.1. 1. Acute Angle

2.1.1. Acute Angle--An angle that is less than or smaller than 90 degrees.

2.1.1.1. Real World Example of an "Acute Angle"

2.2. 2. Obtuse Angle

2.2.1. Obtuse Angle--An angle greater than 90 degrees but less than 180 degrees.

2.2.1.1. Real World Example of an "Obtuse Angle"

2.3. 3. Right Angle

2.3.1. Right Angle--An angle measuring exactly 90 degrees.

2.3.1.1. Real World Example of a "Right Angle"

2.4. 4. Straight Angle

2.4.1. Straight Angle--An angle measuring exactly 180 degrees, also known as a line.

2.4.1.1. Real World Example of a "Straight Angle"

3. Classifying Triangles According to Sides

3.1. 1. Equilateral Triangle

3.1.1. A triangle that has 3 sides of equal length & 3 angles of equal measure.

3.1.1.1. Real World Example of an "Equilateral Triangle"

3.2. 2. Isosceles Triangle

3.2.1. A triangle that has only 2 sides of equal length.

3.2.1.1. Real World Example of an "Isosceles Triangle"

3.3. 3. Scalene Triangle

3.3.1. A triangle that has no sides of equal length.

3.3.1.1. Real World Example of a "Scalene Triangle"

4. Video Review