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Task A sphere's surface is being decreased by 36%. How much will its volume and "circumference" change (in %)? (sphere's circumference = circumference of the biggest intersecting circle))

The circumference decreases by

bitte warten

The volume decreases by

bitte warten

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Solution [Lösung anzeigen][Lösung ausblenden] Decrease of circumference:   20%    (Select the red area to see the solution) Decrease of volume:   48,8%    (Select the red area to see the solution)