snasir20 snasir20
  • 19-07-2018
  • Mathematics
contestada

Find the length of lines DE.

Find the length of lines DE class=

Respuesta :

elchewster71
elchewster71 elchewster71
  • 19-07-2018

This is known as The Theorem of Pythagoras

Basically is A2+B2+C2

Plug in the numbers as

16^2+B^2=30^2

Subtract 16 from both sides

16-16=0

30-16=14

Your Choice is A. 14cm


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