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June 17, 2024, 03:45:45 am
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Author Topic: VCAA 2007 Geometry  (Read 434 times)  Share 

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spikey

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VCAA 2007 Geometry
« on: November 03, 2011, 05:15:07 pm »
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Can anyone help me out with Question 7 on the vcaa 2007 exam 1 paper in geometry?
The answer I keep getting doesnt seem to be any of the choices

is it meant to be:
Total surface area of cylinder - hemisphere TSA - area of the circle on the lid?

Here is a link
http://www.vcaa.vic.edu.au/vce/studies/mathematics/further/pastexams/2007/2007furmath1.pdf
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davidle_10

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Re: VCAA 2007 Geometry
« Reply #1 on: November 03, 2011, 05:55:38 pm »
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I think you're referring to q6 as q7 is about a rod within a cube. For q6 you are basically meant to calculate the TSA of the REMAINING section of the cylinder after removing the hemisphere. So the answer I believe would be TSA=SA of half a sphere + SA of cylinder - A of circle
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2010: Methods
2011:English, Chemistry,Physics, Specialist, Further.

spikey

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Re: VCAA 2007 Geometry
« Reply #2 on: November 03, 2011, 06:05:30 pm »
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Ah yes question 6 sorry. Oh get it now thanks! I was subtracting all of them before
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