snasir20 snasir20

19-07-2018
Mathematics

contestada

Find the length of lines DE.

Find the length of lines DE class=

Respuesta :

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

Answer Link

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