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31 Cards in this Set
- Front
- Back
The shaded part is called
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Segment
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Area of a Circle is given by the formula
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This line is called
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Tangent
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is the formula for the
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area of a circle
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Circumference of a Circle is given by the formula
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πd
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This line is called
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Radius
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Diameter
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This line is called
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Chord
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This line is called
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Diameter
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The shaded part is called
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Sector
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Chord
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Segment
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Sector
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πd is the formula for the
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circumference
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Tangent
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Radius
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Part of the circumference is called an:
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Arc
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Which circle theorem?
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A tangent meets a radius at 90 degrees
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Which circle theorem?
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The angle in a semi–circle is a right angle
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Which circle theorem?
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Tangents from an external point are equal in length.
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The angle at the centre is twice the angle at the circumference (picture how it looks in your head)
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Which circle theorem?
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The Alternate Segement Theorem
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Which circle theorem?
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Opposite angles in a cyclic quadrilateral add to 180 degrees
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Which circle theorem?
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Angles in the same segment are equal
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Which circle theorem?
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The angle at the centre is twice the angle at the circumference
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A tangent meets a radius at 90 degrees (picture how it looks in your head)
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Angles in the same segment are equal (picture how it looks in your head)
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Describe the alternate segment theorem in detail.
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The angle between a tangent and a chord is equal to any angle on the circumference that stands on that chord.
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Opposite angles in a cyclic quadrilateral add to 180 degrees (picture how it looks in your head)
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The Alternate Segment Theorem (picture how it looks in your head)
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Which Circle Theorem? |
the perpendicular from thecentre of a circle to a chord bisects the chord |
