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What's on the worksheet
- Say if each pair of angles in the figure is vertical, adjacent or neither.
- Find all four angles at a crossing from the fact given.One pair of vertical angles adds to 104°.The two obtuse angles add to 244°.Three of the four angles add to 290°.Three of the four angles add to 310°.
- Word problem: the angles between the legs of a folding camp stool.
- Find the angles when two vertical angles together measure 52 degrees.
- Explain why Priya's protractor readings at a crossing must be wrong.
- Find angles at a crossing with a ray inside one of them.
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The free lesson teaches it with worked examples and practice problems.
Vertical angles: the lesson ›