Wow (read only if you're interested in maths)

Cornersteady replied on 25/07/2018 21:19

Posted on 25/07/2018 21:19

Warning stop now if you don't like maths

Even now I am at times amazed by a new to me maths theorem that I haven't seen before.

Draw any three different size circle that do not over lap. Draw tangents joining each circle. The intersection points of the three pairs of tangents all meet in a straight line. WOW

replied on 25/07/2018 21:33

Posted on 25/07/2018 21:33

I like that!

(OH wasn't impressed though)

replied on 25/07/2018 21:43

Posted on 25/07/2018 21:43

The user and all related content has been Deleted User

Rocky 2 buckets replied on 26/07/2018 09:05

Posted on 26/07/2018 09:05

Without numbers as a guide I’m stumped😢, I can neither fill the gaps with the relevant colours nor join the lines. . . .Bummer☹️

Cornersteady replied on 26/07/2018 10:50

Posted on 25/07/2018 21:29 by Tinwheeler

Please, Sir, can we colour it in? laughing

 

Sorry, Corners, no offence intended. smile

Posted on 26/07/2018 10:50

actually you don't realise how happy that question makes teachers, and especially when on supply.

It is absolutely amazing the calming effect of colouring in has on the most 'challenging' of classes, even in year 11. Get out the crayons (posh kids will have their own gel pens) and everyone is happy and quiet. Really! I suppose it takes them back to primary school?

Cornersteady replied on 26/07/2018 11:01

Posted on 26/07/2018 11:01

thanks for all the replies, I got this last night in the form of a question last night, what's the probability of drawing three circles and.....

It's one of those questions that you immediately think that can't be true, but then can it? Guess who sadly drew out some examples? embarassed

Found out last night that you can use the same idea with 3D spheres (football, tennis, and table tennis balls) and tangent cones, a very easy to follow proof is here.

 

so... a caravan (club site naturally) has an infinite number of pitches and they are all taken, after 12 an outfit turns up, what happens?

 

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