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The longest chord passes through the centre of the circle (view source)
Revision as of 10:08, 6 December 2013
, 10:08, 6 December 2013→Concept # Construction of tangents
===Notes for teachers===
===Notes for teachers===
===Activity No # Construction of Direct common tangent ===
===Activity No # 1. Construction of Direct common tangent ===
{| style="height:10px; float:right; align:center;"
{| style="height:10px; float:right; align:center;"
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
# What are properties of direct common tangents ?
# What are properties of direct common tangents ?
===Activity No # Construction of Transverse common tangent===
===Activity No # 2. Construction of Transverse common tangent===
{| style="height:10px; float:right; align:center;"
{| style="height:10px; float:right; align:center;"
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">