Starter 1) Draw a circle. Label the circumference. Draw and label the radius and diameter. 2) Draw another circle. Draw and label a chord, a sector, an.

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Presentation transcript:

Starter 1) Draw a circle. Label the circumference. Draw and label the radius and diameter. 2) Draw another circle. Draw and label a chord, a sector, an arc, and a segment. 3) Draw a semicircle.

Angle subtended by an arc at the centre of a circle is twice the angle subtended at the circumference.

Angle in a semicircle is a right angle

Angles in same segment are equal

The sum of the opposite angles of a cyclic quadrilateral is 180 0

The angle between a chord and a tangent at the point of contact is equal to the angle in the alternate segment.

Tangents drawn from a point are equal in length. Tangents form a right angle with the radius of a circle.

Please work Revision Exercise 13a, page 180

Homework Reminder Exercise 4.3b, page 50, question 1 Exercise 14.2b, page 188, question 3 Exercise 18.1b, page 263, question 2 Due: Monday, 6 th of December 2010 My Maths Homework Reminder “Data” “Charts and Graphs” “Scatter Graphs” Level 6 Due: Wednesday, 1 st of December 2010