Circle Theorems

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  • Created by: Sucrlose
  • Created on: 05-12-23 20:39
At what angle do a tangent and radius meet?
At 90 degrees.
1 of 12
What kind of triangle do two radii form?
An isosceles triangle.
2 of 12
What part of the circle does the perpendicular bisector of a chord pass through?
The centre of the circle.
3 of 12
The angle subtended at the centre of a circle is twice the angle of where?
The circumference.
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How much is the angle at the circumference of a semicircle?
Ninety degrees.
5 of 12
What is the relationship between angles at the same segment?
They are equal.
6 of 12
What kind of angles in a cyclic quadrilateral add up to 180?
Opposite angles.
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Tangents from the same point are the same ______?
The same length.
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What kind of triangles do two tangents that meet make?
Two congruent right-angled triangles.
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The angle between a tangent and a chord is always equal to what?
The angle at the opposite segment.
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All triangles drawn from a chord will have the same _____ when they touch the circumference.
The same angle.
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A triangle drawn from the two ends of a diameter will always make an angle of ______ degrees where it hits the _____________ of the circle, no matter where it hits.
Ninety degrees, where it hits the circumference
12 of 12

Other cards in this set

Card 2

Front

What kind of triangle do two radii form?

Back

An isosceles triangle.

Card 3

Front

What part of the circle does the perpendicular bisector of a chord pass through?

Back

Preview of the front of card 3

Card 4

Front

The angle subtended at the centre of a circle is twice the angle of where?

Back

Preview of the front of card 4

Card 5

Front

How much is the angle at the circumference of a semicircle?

Back

Preview of the front of card 5
View more cards

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