### Home > A2C > Chapter 12 > Lesson 12.1.1 > Problem12-16

12-16.

One angle of a triangle measures $70^{°}$ and the opposite side has length of $37.2$ feet. Another angle of the triangle measures $30^{°}$. Find the measures of the remaining angle and the two remaining sides of the triangle.

The sum of the angles in a triangle is 180°.

Use the Law of Sines to calculate the remaining side lengths.

$\frac{\text{sin}(70º)}{37.2}=\frac{\text{sin}(30º)}{x}$