what are the measures of the other two angles of an oblique triangle if the angle between the 6.5m. side and the 10.5 m. side is about 60 degree

1 answer

If the sides are a and b, and the included angle is C, then

c^2 = a^2+b^2-2ab cosC

sinA/a = sinC/c

A+B+C = 180