Maths: Circle Theorems

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7 Terms

1
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<p>What are the angles in the same segment?</p>

What are the angles in the same segment?

Angles in the same segment are equal.

2
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<p>What is the relationship between the angle at the circumference and the angle at the centre?</p>

What is the relationship between the angle at the circumference and the angle at the centre?

The angle at the centre is twice the angle at the circumference.

3
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<p>What type of angle is an angle in a semicircle, that is on circumference?</p>

What type of angle is an angle in a semicircle, that is on circumference?

An angle in a semicircle is 90 degrees.

4
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<p>What is a quadrilateral called when all 4 corners touch the circumference?</p>

What is a quadrilateral called when all 4 corners touch the circumference?

A quadrilateral which has all 4 corners touch the circumference is called a cyclic quadrilateral.

5
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<p>What angle does a tangent (line touching the circumference outside of circle)meet the radius at?</p>

What angle does a tangent (line touching the circumference outside of circle)meet the radius at?

The angle that the tangent meets the radius at is 90 degrees.

6
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<p>What is the relationships between two tangents from the same point?</p>

What is the relationships between two tangents from the same point?

The length of two tangents from the same point are equal.

7
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<p>What is the name of the theorem that states the angle between a tangent and a chord equalds the angle in the alternate segment?</p>

What is the name of the theorem that states the angle between a tangent and a chord equalds the angle in the alternate segment?

Alternate segment theorem.