Q. In ∆DEF measure of angle E is 90°. If secD = 25/7, and DE = 1.4cm, then what is the length (in cm) of side DF?
A) 4.8
B) 5
C) 5.6
D) 4
✔ Correct Answer: 5
Exam Insight
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A) 4.8
B) 5
C) 5.6
D) 4
✔ Correct Answer: 5
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