Wednesday, April 13, 2011

Math

Today in math we learned how to find the circumference and diameter of a circle. To find the diameter, you measure the radius (the distance to the middle of the circle) then multiply it by 2. The formula is D=2 x r. To find the circumference, measure the diameter ( the distance through the circle) then multiply it by pi (9 3.14). The formula is c= 3.14 x D.

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