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The longest chord passes through the centre of the circle (view source)
Revision as of 11:34, 3 December 2013
, 11:34, 3 December 2013→Learning objectives
# Constructing tangents to a circle from external point at a given distance.
# Constructing tangents to a circle from external point at a given distance.
# A tangent that is common to two circles is called a common tangent.
# A tangent that is common to two circles is called a common tangent.
# A common tangent
# A common tangent with both centres on the same side of the tangent is called a direct common tangent.
# A common tangent with both centres on either side of the tangent is called a transverse common tangent.
===Notes for teachers===
===Notes for teachers===