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14 Cards in this Set
- Front
- Back
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A TANGENT and a RADIUS meet at 90° |
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TWO RADII form an ISOSCELES TRIANGE |
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A PERPENDICULAR BISECTOR will always meet the CENTRE of a CHORD at 90° |
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The angle at the CENTRE of a circle is TWICE the angle at the circumference |
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All the ANGLES in a SEMICIRCLE are 90° |
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Angles in the SAME SEGMENT are EQUAL |
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OPPOSITE ANGLES in a CYCLIC QUADRILATERAL add up to 180° |
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TANGENTS from the SAME POINT are the SAME LENGTH |
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The ANGLE BETWEEN a TANGENT and a CHORD is always EQUAL to 'the ANGLE in the OPPOSITE SEGMENT' |
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What is a Radius? |
A straight line from the centre to the circumference of a circle |
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What is a Tangent? |
A line that touches a single point on the circumference of a circle |
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What is a Chord? |
Any line that is drawn across a circle |
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What is a Cyclic Quadrilateral? |
A 4-sided shape with every corner touching the circumference of the circle |
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What is a Segment? |
A region of a circle created by a chord |
