Question

The angle of depression from D to F measures 40°. If DE = 100 m, find DF. Round your answer to the nearest tenth.

Answer 1

@Yttrium @help123please.

Answer 2

Through the clues in the drawing, do you know what trigonometric function should be used?

Answer 3

tan?

Answer 4

Why tan? Remember, you need to solve for DF.

Answer 5

um i forgot .

Answer 6

What is DF? A leg or hypotenuse?

Answer 7

hypotenuse

Answer 8

and what are the given? (refer to the drawing)

Answer 9

100 50 40 do i have to do a^2+b^2=c^2 ??/

Answer 10

No, you're lacked of given sides. Focus on 100 50 and the hypotenuse. What do you think is the trig func, that will solve for that hypotenuse?

Answer 11

i seriously am lost

Answer 12

What is cos?

Answer 13

pythagorem therom ?

Answer 14

No. It is adj/hyp. Right? You can do that. :D

Answer 15

cos40*100 ??

Answer 16

No. 100/cos50

Answer 17

thnk :)