Posted by janice on .
Given BC = 53 cm, BD = 62 cm, CD = 80 cm, ABC = 53°, and ACB = 66°, find the following. (Round your answers to the nearest whole number.)
(a) the length of the chainstay, AC
AC = cm
(b) BCD
BCD = °

trig  incomplete 
Steve,
where's D? is ABC a triangle?