In ΔDEF measure of angle E is 90°. If cos D = 8/17, and DE = 16 cm, – McqOptions

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1.	In ΔDEF measure of angle E is 90°. If cos D = 8/17, and DE = 16 cm, then what is the length (in cm) of side DF?
A.	30
B.	20
C.	26
D.	34
Answer» E.

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