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Question
secondary 4 | A Maths
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hi i need help with this question, thank you!
Date Posted: 4 years ago
Views: 351
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done
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There you go.
Date Posted:
4 years ago
I made a mistake on the second line. It should be h=a-r. The rest of the working is correct. My apologies.
thank you so much!
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An idea
Date Posted:
4 years ago
Alternatively, you can also do
r = a - h
Sub into cone formula
V = 1/3 pi (a - h)^2 h
and find h which makes dV/dh zero
r = a - h
Sub into cone formula
V = 1/3 pi (a - h)^2 h
and find h which makes dV/dh zero
thank you! :)
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