Slides in this set

Slide 1

Preview of page 1

Circle Theorems…read more

Slide 2

Preview of page 2

Parts of a Circle Major
Diameter Minor Sector
Tangent Major
Segment…read more

Slide 3

Preview of page 3

Theorem One
Angle at centre is twice that at circumference,
this doesn't have to be in a arrow head as
shown here, but it has to be from the same two
points. You might see the word subtended
written down, this is just
a another way of
saying made.
2a…read more

Slide 4

Preview of page 4

Theorem Two
Tangents to a point are equal in length. This is
an important one to remember has they can
make an isosceles triangle when combined
with a chord.…read more

Slide 5

Preview of page 5

Theorem Three
Alternate segment theory : The angle between
the tangent and chord at the point of contact is
equal to the angle in the alternate segment.
Look out for a triangle with one of its vertices
resting on the point of contact of the tangent.
b a
a b…read more

Slide 6

Preview of page 6

Theorem Four
Opposite angles in a cyclic quadrilateral equal
180°, this is only true if all the vertices
(corners) are touching the circumference.
c+d=180° c b
a…read more

Slide 7

Preview of page 7
Preview of page 7

Slide 8

Preview of page 8
Preview of page 8

Slide 9

Preview of page 9
Preview of page 9

Slide 10

Preview of page 10
Preview of page 10


No comments have yet been made

Similar Mathematics resources:

See all Mathematics resources »