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GeoGebra Classroom

Round in Circles

作者：Linda Forrester, Tim Brzezinski

主題：圓

Circles, circumference and area

Watch the video. Then find the Area and Circumference of the following circles.

The radius is 5m.

The Radius of this circle is 3cm.

this circle has a diameter of 4cm

this circle has a diameter of 16m.

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