Question

In △DEF, what is the length of segment DF ?

Answer 1

i had this question :O

Answer 2

Sorry....
27/DF = sin(60)
DF = 27/sin(60)

Answer 3

sin(60) = 0.866

Answer 4

i think you have to use the pythagorean theorum but idk how.. if you know how, can yu show me lik step by step..?

Answer 5

You can't use the pythagorean theorem because you are NOT given two sides of the triangle and asked to find the third side.

Answer 6

You are given an angle and a side. So, you have no choice but to use trigonometric ratios.

Answer 7

YOu can also use laws of cosine

Answer 8

this is what my question looks like..

Answer 9

sin(60) = opposite side / hypotenuse. In this case, the opposite side is given to be 27.

Answer 10

sin(60) can also be written as SQRT(3)/2.