diameter of a circular bubble of soap is 4.2 the volume of an inside ?
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4/3 pi × r^3
4/3 × 3.14 × 2.1 × 2.1 × 2.1
38. 77272 unit cube
4/3 × 3.14 × 2.1 × 2.1 × 2.1
38. 77272 unit cube
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Hello,
the circula bubble is a ball.
we calculathe the volume of the ball:
V=4/3πr³
we know that.
r=d/2
so:
V=4/3π×(d/2)³=4/3π×d³/8=1/6πd;
V=1/6πd³=1/6π×(4.2)³=1/6π×74.088=38.79
bye :-)
the circula bubble is a ball.
we calculathe the volume of the ball:
V=4/3πr³
we know that.
r=d/2
so:
V=4/3π×(d/2)³=4/3π×d³/8=1/6πd;
V=1/6πd³=1/6π×(4.2)³=1/6π×74.088=38.79
bye :-)
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