In DeltaDEF measure of angle E .is 90^(@...

In `DeltaDEF` measure of angle E .is `90^(@)` .If `cosD=(8)/(17),andDE=16cm`., then what is the length (in cm.)of side DF?

A

30

B

20

C

26

D

34

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The correct Answer is:

C, D

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