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# Angle Rules Summary

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Year 8 Set 1 Angle Homework Info

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### Angle Rules Summary

1. 1. Triangles, Straight and Parallel Lines <ul><li>To complete the homework you need to use combinations </li></ul><ul><li>of the following rules: </li></ul><ul><li>Angles in a straight line, </li></ul><ul><li>Angles in a triangle and quadrilateral, </li></ul><ul><li>Corresponding, Alternate, Interior and Vertically Opposite angles. </li></ul><ul><li>The following slides give reminders for each rule. </li></ul>
2. 2. Triangles, Straight and Parallel Lines What size is angle A ? Angles in a Straight Line Equal 180 ° A 45 °
3. 3. 45 ° What size is angle B ? B Angles in a Triangle Equal 180 ° Triangles, Straight and Parallel Lines
4. 4. 90 ° What size is angle B ? B Triangles, Straight and Parallel Lines 90 ° 90 ° Angles in a Q uadrilateral Equal 360 °
5. 5. What size is angle C ? 40 ° Vertically Opposite Angles are Equal Triangles, Straight and Parallel Lines C
6. 6. D What size is angle D ? 140 ° Interior Angles Sum to 180 ° Triangles, Straight and Parallel Lines
7. 7. 40 ° What size is angle E ? E Corresponding Angles are Equal Triangles, Straight and Parallel Lines
8. 8. 140° F What Size is angle F ? Alternate Angles are Equal Triangles, Straight and Parallel Lines