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secondary 4 | E Maths
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Hi. I need help for part(a). The answer is: r=2.34, h=1.36
Date Posted: 7 years ago
Views: 383
The volume of the container is said to be 18pi cm^2. The volume of the hemisphere is 1/8 of the whole, hence 2.25pi cm^2, and hence the volume of the cylinder is 15.75pi cm^2.
You have the formula of
Hemisphere: 2/3*pi*r^3
Cylinder: pi*r^2*h
First substitute the hemisphere formula to be 2.25pi and you will get the value of r.
Next substitute the value of r and the 15.75pi into the formula of cylinder to get h. You should gst the answers
Go try it. Hope it helps
You have the formula of
Hemisphere: 2/3*pi*r^3
Cylinder: pi*r^2*h
First substitute the hemisphere formula to be 2.25pi and you will get the value of r.
Next substitute the value of r and the 15.75pi into the formula of cylinder to get h. You should gst the answers
Go try it. Hope it helps
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the answer you've provided is incorrect
Date Posted:
7 years ago
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