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Geometry Angle Facts for Problem Solving Mastery

Learn essential angle facts for geometry problem-solving, including properties of triangles and lines. Master angles on point, line, triangle, and more to enhance your geometry skills efficiently.

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Geometry Angle Facts for Problem Solving Mastery

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  1. Objective Be able to use angle facts to solve problems in geometry.

  2. FACT A • Angles around a point add up to 360º

  3. FACT B • Angles on a straight line add up to 180º

  4. FACT C • Angles in a triangle add up to 180º a c a + b + c = 180º b

  5. FACT D • The base angles in an isosceles triangle are equal.

  6. 60º 60º 60º FACT E • Each angle in an equilateral triangle is 60º

  7. FACT F • Vertically opposite angles are equal. b a a b

  8. FACT G • Alternate angles are equal a a

  9. FACT G • Corresponding Angles are equal b b

  10. FACT H • Allied angles add up to 180º. y x x + y = 180º

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