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 Post subject: Another Alleyn maths questionPosted: Sun Jul 31, 2016 8:55 pm

Joined: Thu Mar 12, 2015 4:11 pm
Posts: 229
24d...find the area of the square....

http://www.alleyns.org.uk/alleyn/docume ... _paper.pdf

The only way I can do it is using the pythagoras theorem. Is there another way, more fitting KS3.

Thanks

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 Post subject: Re: Another Alleyn maths questionPosted: Sun Jul 31, 2016 9:10 pm

Joined: Mon Feb 12, 2007 1:21 pm
Posts: 13992
Draw a line from each vertex ie from (3,1) draw a line horizontal to the left, from (0,3) draw it vertically down etc.
if you repeat you should see four triangles [each half of a rectangle 3 squares by 2 squares] and a small square in the middle.

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 Post subject: Re: Another Alleyn maths questionPosted: Mon Aug 01, 2016 9:45 am

Joined: Thu Mar 12, 2015 4:11 pm
Posts: 229
Thanks Guest55. That's great.

I'm convinced questions like this are either for Maths professionals or a quite clever 10 year olds.... nothing in between.

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 Post subject: Re: Another Alleyn maths questionPosted: Mon Aug 01, 2016 8:25 pm

Joined: Fri Oct 12, 2007 12:42 pm
Posts: 3826
Each line goes along 3 and up/down 2. As soon as it is drawn it is easy to see.

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