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RE: Maths Brain Teasers 118 :: Can You - Complete the Pentagon?

in STEMGeeks β€’ last year (edited)

The missing number is 10. We add similar position of the left and right to get the middle. in case of ?? We add 9+1 =10 that's for the Pentagon.
Great quote πŸ’ͺπŸ’ͺπŸ’ͺ