Maximisation problem (1 Viewer)

[kpad5991]

http://https://imgur.com/gallery/108AXA cylinder of height h cm and radius r is enclosed on a cone of height 40cm and radius 12cm. Explain why ABC is similar to ADE? By using Ratios of corresponding sides, show that h=40-10/3r.

The question is Ex 12 G Q20 a, b from the Year 11 2U

Also can you do Q21 d from the same exercise

 

[jazz519]

Could you please post the diagram from 20 and what q21 is (if the file is too big u can upload it to imgur or google drive)

 

[kpad5991]

https://i.imgur.com/wZ30v2q.jpg

 

[jazz519]

https://imgur.com/gallery/pkKKj
https://imgur.com/gallery/wbP4e
https://imgur.com/gallery/7vr1Y
https://imgur.com/gallery/R0Kg7

 

[supR]

This is my solution to 21d

I don’t have access to that txt so please tell me if my answer is correct


Sent from my iPhone using Tapatalk

 

[supR]

Just noticed that I was late and Jazz already answered your question, was still fun to have a go anyways


Sent from my iPhone using Tapatalk

 

[jazz519]

This is my solution to 21d

I don’t have access to that txt so please tell me if my answer is correct


Sent from my iPhone using Tapatalk

yep looks all good