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==Concept #2 Radius and Diameter==
==Concept #2 Radius and Diameter==
[[File:rad_dia.jpg|200px|right]]
[[File:rad_dia.jpg|200px|right]]
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''RADIUS:A straight line drawn from centre to the circumference''<br>
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''DIAMETER:A straight line drawn through the centre and terminated both ways by the circumference.''
===Learning objectives===
===Learning objectives===
# Radius is a straight line joining centre of a circle to any point on the circumference.
# Radius is a straight line joining centre of a circle to any point on the circumference.