# Math Help - Figuring out angles and lengths from limited information

1. ## Figuring out angles and lengths from limited information

2. Originally Posted by prettiestfriend
Something is wrong with your angles

$23^\circ +48^\circ \ne 69^\circ$

Start by looking there

3. Oh.

Um well 48 is incorrect then, it should be 46 degrees. However, this has no effect on the results I got - I didn't use it in my calculations.

4. Originally Posted by TheEmptySet
Something is wrong with your angles

$23^\circ +48^\circ \ne 69^\circ$

Start by looking there
$\tan(23)=\frac{BD}{BC}$

$\tan(69)=\frac{BD+AD}{BC}$

And you know BC.

So solve for BD then use it in the 2nd to find AD

5. Originally Posted by prettiestfriend
27.039