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Lines, Angles and Shapes

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Presentation on theme: "Lines, Angles and Shapes"— Presentation transcript:

1 Lines, Angles and Shapes
14 July 2019 Here are some facts about angles that you should know A square corner like this is called a: RIGHT ANGLE It measures 900 (90 degrees) 900

2 1800 on a straight line Push Push 900 900 Push Push 900 900
= 1800 1800 on a straight line

3 b d a c Prove that x + y + z = 1800 y x z
Line ab is parallel to line cd so… c

4 This angle must be x degrees
y x z x This angle must be x degrees Line ab is parallel to line cd so c

5 This angle must be y degrees
These are scissor angles so d y x z x c

6 This angle must be y degrees
x z x These lines make corresponding angles so c

7 y d y y x z x x, y and z make a straight line so these angles must add up to give a total of 1800 c


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