Question

Trigonometry. How do I solve this?

Answer 1

Which angle are you trying to find?

Answer 2

and the ditsnce from d to c is 15m. im tying to find the distnce from a to b. =)

Answer 3

Assuming the shape is not a rectangle

Answer 4

Okay..

Answer 5

Hmm... Where is the right angle?
The botom left angle is \(160+59=219\)
The bottom right angle is \(108+13=121\)

Answer 6

Anybody know there the \(Right-Angle\) is?

Answer 7

Nah im sorry no idea.

Answer 8

Really sorry

Answer 9

Its OK, your question ;)
We need a right-angle triangle to use Trigonomatry, but I can't find any 90 degree angle.

Answer 10

can we use theta= 180- (angle1 + angle2)?

Answer 11

no haha

Answer 12

But what will that give us?
To find length, we need to use:
\[sin\theta=\frac{Opposite}{Hypotnuse}\]
\[cos\theta=\frac{Adjacent}{Hypotnuse}\]
\[tan\theta=\frac{Opposite}{Adjacent}\]
But in all cases, we need a 90 degree angle.