# Solve the Triangle a=8 , c=7 , B=31.8

Solve the Triangle a=8 , c=7 , B=31.8
, ,
Use the law of cosines to find the unknown side of the triangle, given the other two sides and the included angle.
Solve the equation.
Substitute the known values into the equation.
Simplify the results.
Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .
Use the law of cosines to find the unknown side of the triangle, given the other two sides and the included angle.
Solve the equation.
Substitute the known values into the equation.
Simplify the results.
Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .
Use the law of cosines to find the unknown side of the triangle, given the other two sides and the included angle.
Solve the equation.
Substitute the known values into the equation.
Simplify the results.
Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .
Use the law of cosines to find the unknown side of the triangle, given the other two sides and the included angle.
Solve the equation.
Substitute the known values into the equation.
Simplify the results.
Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .
Use the law of cosines to find the unknown side of the triangle, given the other two sides and the included angle.
Solve the equation.
Substitute the known values into the equation.
Simplify the results.
Raise to the power of .
Raise to the power of .
Multiply by .
Multiply by .