Fill the corners
November 16, 2009 at 12:42 pm 1 comment
Last week I posted this problem on facebook but did not receive a response. I am hoping that this visual with help in finding the solution. Thomas Jay added a hint to the problem.
There is more than one answer to the problem. And an incorrect response is still a good response because it means you are thinking.
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Mango Math Blog 
1.
Mango Math | November 17, 2009 at 7:12 am
The easiest way to figure out the value of each corner is to fill in a circle with the number in the middle of the opposite side. each side will then contain 10, 17 & 45 for a total of 72. All other solutions are obtained by increasing these numbers by the same increment.