20 squared is 20 x 20 or 400.
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20 squared is 20 x 20 or 400.
20 squared = 20^2
Seems to us that any value at all can be squared.
'20 squared' simply means 20 multiplied by itself (20 x 20). This equals 400.
Simple. When a number is 'squared' it simply means it is multiplied by itself. So, '20 squared' means 20 x 20, which equals 400.