Chapter 7 Angles and Triangles

1
Chapter 7 Angles and Triangles

• Terms
• Half-line
• Ray
• Angle
• Sides of the angle
• Vertex
• Positive Angle
• Negative Angle
• Measure of an angle
• tri
• gonia
• metron

?
2
Chapter 7 Angles and Triangles

• Right Angle
• Straight Angle
• Acute Angle
• Obtuse Angle
• Complementary Angles
• Supplementary Angles
• Degree-minute-second format
• Find the complementary angle of
• 50?1422

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3
Chapter 7 Angles and Triangles

• Decimal Degree Format
• Change
• 50?1422
• to Decimal Degree Format

4
Chapter 7 Angles and Triangles

• Decimal Degree Format
• Change
• 50?1422
• to Decimal Degree Format
• 50.24 ?

5
Chapter 7 Angles and Triangles

• Degree-Minute-Second Format
• Change
• 23.24?
• to Degree-Minute-Second Format

6
Chapter 7 Angles and Triangles

• Degree-Minute-Second Format
• Change
• 23.24?
• to Degree-Minute-Second Format

23?1424
7
Chapter 7 Angles and Triangles

• Coterminal Angles
• Triangles
• Oblique
• Isosceles
• Equilateral
• Similar Triangles

8
Homeworkp. 385

• 7, 8, 17, 18, 27, 28, 37, 38, 41, 42, 43, 44, 49,
  50, 57, 58