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#1 2007-05-01 00:40:48
- Identity
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- Registered: 2007-04-18
- Posts: 934
Square in Triangle
How can I get going with this question? Thxes
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#2 2007-05-01 01:21:30
- mathsyperson
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- Registered: 2005-06-22
- Posts: 4,900
Re: Square in Triangle
There's a similar triangle in that diagram that you know the side length of.
Why did the vector cross the road?
It wanted to be normal.
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#3 2007-05-01 02:02:13
- Identity
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Re: Square in Triangle
Oh yeah... I missed that mini equilateral triangle... not too hard from here
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#4 2007-05-01 03:06:32
- Identity
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Re: Square in Triangle
It's E yeah?
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#5 2007-05-01 03:19:41
- mathsyperson
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- Registered: 2005-06-22
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Re: Square in Triangle
Yup, that's what I got.
I just realised that you can also use the fact the equilateral triangles have angles of 60° along with some trigonometry to work out the base lengths of the two right-angled triangles and get the overall side length that way. That way might have been easier. Still, at least it confirms the answer.
Why did the vector cross the road?
It wanted to be normal.
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