Circles. diameter Circumference radius Circumference- the distance around the circle. About 3X the diameter.

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Presentation transcript:

Circles

diameter Circumference radius Circumference- the distance around the circle. About 3X the diameter

diameter Circumference radius Center-Tells us where the middle of the circle is. Center

diameter Circumference radius Radius- connects the center to any point on the circle. (Half way)

diameter Circumference radius Diameter- any line that goes through the center of the circle from one side to the other. (All the way) 2X the radius

6 in. 18 in. Radius = Find the radius

Diameter = 24 in. 4 in. Find the Diameter

4 in. Circumference= 2 in. Find the Circumference

8 in. Circumference radius Find the radius and circumference

If the radius is 10, what is the circumference?

If the diameter is 12, what is the radius?

If the radius is 3, what is the circumference and the diameter? Show me and start Page 453

diameter Circumference radius Radius: Diameter: Circumference: