Circle Geometry Flashcards
(16 cards)
Which angle is twice the angel at the centre of the circumference
The angle at the centre of the circle
The angle at the centre is ____ the angle at the circumference
Twice
The angle in a semi circle is?
90
Angles in the same segment (all triangles drawn from a chord) are
Equal
Opposite angles in a cyclic quadrilateral add up to
180
What is the alternate segment theorem
The angle between a tangent and a chord is always equal to the angle in the opposite segment
A tangent and a radius meet at…
90
Tangents from the same point are
The same length
The perpendicular bisector of a chord passes through the _____ of the circle
Centre
What is a chord
Any line drawn across a circle
Two radii form….
An isosceles triangle
A tangent is…
A straight line that touches the outside of a circle
A circumference is…
The distance all the way around a circle
A sector is…
A wedge shaped area cut from the centre
Segments are…
Areas you get when you cut a circle with a chord
What meets at 90?
A semi circle
Tangent and radius
