Angle Rules
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Angle Rules

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A slide show showing the basic angle rules that should be known for KS3 Maths.

A slide show showing the basic angle rules that should be known for KS3 Maths.

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Angle Rules Angle Rules Presentation Transcript

  • FACT A
    • Angles around a point add up to 360 º
  • FACT B
    • Angles on a straight line add up to 180 º
  • FACT C
    • Angles in a triangle add up to 180 º
    a b c a + b + c = 180º
  • FACT D
    • The base angles in an isosceles triangle are equal.
  • FACT E
    • Each angle in an equilateral triangle is 60 º
    60 º 60 º 60 º
  • FACT F
    • Vertically opposite angles are equal.
    a a b b
  • FACT G
    • Alternate angles are equal
    a a
  • FACT G
    • Corresponding Angles are equal
    b b
  • FACT H
    • Allied angles add up to 180 º.
    x y x + y = 180 º
  •