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Changes
From Karnataka Open Educational Resources
→Concept #4: Theorems and properties
===== Activities =====
===== Activities =====
====== The longest chord passes through the centre of the circle ======
====== [[The longest chord passes through the centre of the circle]] ======
====== [[Perpendicular bisector of a chord passes through the center of a circle]] ======
====== [[Perpendicular bisector of a chord passes through the center of a circle]] ======
====== [[Circles and lines activity 7|Properties of cyclic quadrilateral]] ======
====== [[Circles and lines activity 7|Properties of cyclic quadrilateral]] ======
==== Concept #5 Constructions in circles ====
==== Concept #6 Constructions in circles ====
The students should know that tangent is a straight line touching the circle at one and only point.They should understand that a tangent is perpendicular to the radius of the circle.The construction protocol of a tangent.Constructing a tangent to a point on the circle.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 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.
The students should know that tangent is a straight line touching the circle at one and only point.They should understand that a tangent is perpendicular to the radius of the circle.The construction protocol of a tangent.Constructing a tangent to a point on the circle.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 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.
