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ArbitrLikvidat [17]
3 years ago
9

A 2.1 cm 2.9 cm Find the value of a.

Mathematics
1 answer:
andreev551 [17]3 years ago
3 0

Step-by-step explanation:

a =  \sqrt{ {2.9}^{2} -  {2.1}^{2}  } =  \\  =  \sqrt{8.41 -4.41 }   =  \\  \sqrt{4 }  = 2

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