Wednesday, January 25, 2012

January 25, 2012 part 2

History of Pi

Pi is the circumference divided by the diameter of any circle.

Area of a circle is pi x radius squared/
The circumference of a circle is 2 x radius x pi


Central Angle of a Circle
Arc 

Inscribed Angle
The length of the arc is always double the inside angle
Area of a Circle
Finding the radius of a circle when you are given the area
Finding areas of Sectors


Homework:
Area and diameter worksheets on website.

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