Erlebnisland Mathematik | Technische Sammlungen Dresden | Junghansstraße 1-3 | 01277 Dresden
Erlebnisland Mathematik

What is the Area of a Circle?

The cake pieces fill the whole area of the circle. You can reassemble them in the parallelogram so that the region is nearly covered. About how long is the base of the parallelogram? What, approximately, is its height? How large is its area?

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