x = 12.77 cm
In this problem, we will use trigonometry to find the missing value. I will use the 70 degree angle to find it.
12cm is the opposite value for 70, and x is the hypotenuse. We will use Sine to solve this problem.
Since we are missing the hypotenuse, we set up the equation like this -
x = 12/Sin(70)
This leads us to our answer, x=12.77 cm (rounded)
Check the picture below.
make sure your calculator is in Degree mode.