Kitty10101
Kitty10101 Kitty10101
  • 16-03-2017
  • Mathematics
contestada

Find the volume of the figure to the nearest tenth
Use 3.14 for n

Find the volume of the figure to the nearest tenth Use 314 for n class=

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VampireJellyfish
VampireJellyfish VampireJellyfish
  • 16-03-2017
Find the area of the cross section (looking at it from the side, you can see a circle, right?)
Once you've found this, multiply it by the length of the whole tube.
So...
Area of cross section (area of circle) = πr²
In this case, r is 1.5cm.
So the area is 3.14 x 1.5² = 7.065
Now times this area by the length of the whole tube, which is 18.5cm.
7.065 x 18.5 = 130.7cm³
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