Question

Find the angle of elevation e: (3x+1) degree sign, d:2(x+8) degree sign

Answer 1

So here I've drawn an angle of elevation, and an angle of depression.
Hopefully the diagram makes sense.

Answer 2

These angles turn out to be congruent since they are `Alternate Interior Angles`.

Answer 3

Therefore: \(\Large\rm 2(x+8) =3x+1\)
And solve for x! :)

Answer 4

I got x =1 ???

Answer 5

Hmmm that doesn't sound quite right :o

Answer 6

\[\Large\rm 2(x+8) =3x+1\]Distributing the 2,\[\Large\rm 2x+16=3x+1\]

Answer 7

How do we get the x's on the same side?
What to do next? :o

Answer 8

subtract 2x from both sides

Answer 9

would x be 17?