[Grammar] "A has an identical shape to B. " is grammatically correct?

rama9

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Mar 2, 2017
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  • A has the same shape as (that of) B.
  • A has an identical shape to (that of) B.

I would like to know whether "that of" is necessary in the sentences above.
 

Rover_KE

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No—it's superfluous.
 
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