Vertically opposite angles & angles round a point

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6 Terms

1
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What are vertically opposite angles?

Angles opposite each other when two lines intersect

2
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What do angles around a point add up to?

360 degrees

3
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What happens when two lines intersect at a point?

The vertically opposite angles are equal.

4
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If vertically opposite angles are equal, what is the value of angle A if angle B = 150°?

Angle A = 150°

5
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If angle C = angle D = 30°, what can be said about angles C and D?

They are vertically opposite angles and are equal.

6
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What is the equation for angles around a point?

A + B + C + D = 360°