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From Karnataka Open Educational Resources
The longest chord passes through the centre of the circle (view source)
Revision as of 04:31, 6 December 2013
, 04:31, 6 December 2013no edit summary
*Question Corner
*Question Corner
==Concept # Construction of tangent==
==Concept # Construction of tangents==
===Learning objectives===
===Learning objectives===
# The students should know that tangent is a straight line touching the circle at one and only point.
# The students should know that tangent is a straight line touching the circle at one and only point.
[Note for teachers : Evaluate if it is possible to construct a direct common tangent without the third circle.]
[Note for teachers : Evaluate if it is possible to construct a direct common tangent without the third circle.]
Developmental Questions:
Developmental Questions:
#What is a tangent
# What is a tangent
# What is a common tangent ?
# What is a common tangent ?
# What is a direct common tangent ?
# What is a direct common tangent ?
*Evaluation:
*Evaluation:
# Were the students able to comprehend the steps in transverse common tangent construction ?
# Were the students able to comprehend the steps in transverse common tangent construction ?
*Question Corner:
*Question Corner:
# Can you construct a transverse common tangent without the third circle ?
# Can you construct a transverse common tangent without the third circle ?
# In a cyclic quadrilateral the exterior angle is equal to interior opposite angle
# In a cyclic quadrilateral the exterior angle is equal to interior opposite angle
===Notes for teachers===
===Notes for teachers===
===Activity#1Cyclic quadrilateral ===
*Estimated Time 10 minutes
*Estimated Time 10 minutes
*Materials/ Resources needed: Laptop, geogebra file, projector and a pointer.
*Materials/ Resources needed: Laptop, geogebra file, projector and a pointer.
*Question Corner
*Question Corner
# Name this special quadrilateral.
# Name this special quadrilateral.
===Activity No # 2.Properties of a Cyclic quadrilateral===
*Estimated Time: 45 minutes
*Estimated Time: 45 minutes
*Materials/ Resources needed
*Materials/ Resources needed
