Question

In △DEF, what is the length of DF

Answer 1

A)

Answer 2

B)

Answer 3

C)

Answer 4

D) 90

Answer 5

90 if my retriceole tells me correctly....

Answer 6

45 45 √3
-- = sin 60 => ---- = ------
DF DF 2

so
90
DF = ----- = 90/1.732 = 51.9630 approx
√3

Answer 7

or if u want exact value
90 √3 90 √3
DF = ----- * ----- = ------- = 30√3
√3 √3 3