Date: 23/11/2015 21:00:00
From: SCIENCE
ID: 804719
Subject: Is This Trigonometry?

http://www.theage.com.au/victoria/vce-maths-problem-can-you-solve-the-50-cent-question-20151102-gkopm8.html

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Date: 23/11/2015 21:01:06
From: sibeen
ID: 804721
Subject: re: Is This Trigonometry?

SCIENCE said:


http://www.theage.com.au/victoria/vce-maths-problem-can-you-solve-the-50-cent-question-20151102-gkopm8.html

Yes.

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Date: 23/11/2015 21:01:50
From: sibeen
ID: 804722
Subject: re: Is This Trigonometry?

Although I suppose it could also fit into Geometry.

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Date: 23/11/2015 21:03:37
From: dv
ID: 804724
Subject: re: Is This Trigonometry?

SCIENCE said:


http://www.theage.com.au/victoria/vce-maths-problem-can-you-solve-the-50-cent-question-20151102-gkopm8.html

I guess it is trigonometry. What it is is elementary. Without anything beyond grade 8 knowledge you could work it out from symmetry.

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Date: 24/11/2015 02:33:03
From: mollwollfumble
ID: 804808
Subject: re: Is This Trigonometry?

Not difficult at all. All you have to do is look at the angle. It’s obviously a lot bigger than 36 and a lot smaller than 72.

Or. Sum of external angles of a polygon add to 360 degrees, so that’s 2*360/12 = 360/6 = 60.

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Date: 24/11/2015 08:30:22
From: Ian
ID: 804836
Subject: re: Is This Trigonometry?

Not necessarily

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