Which conversion(s) will be useful


165in ×  (  )  ×  (  )  ×  (  )  =  ^{2} 
Digits in a number are all significant except: • leading zeroes are never significant • trailing zeroes are only significant if there are numbers after a decimal point ←The number of sig.figs. in the answer is the smallest of the other values. 
Now do the calculation, rounding correctly. (don‘t forget the unit abbreviation) (add 2 or 3 for squared or cubed units) 

←This will be the smallest of the other numbers.  
Now verify the number of significant figures. 
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