A. 12 sin 40°
18 sin 40°
60. The sides of an acute triangle measure 14 cm 18 cm
and 20 cm, respectively. Which of the folla
equations, when solved for 9, gives the measure of the
smallest angle of the triangle?
(Note: For any triangle with sides of length a, b, and e
that are opposite angles A, B, and C, Keupectively,
sin A. .sinB sin C and ? -d + 6* - 2ab cos C.)
18 - 12
h
2-2(12)(18)
riangle shown
G. 40 -
H. sine et
J. 14° - 18° + 20– 2(18220)cos
K. 20° -14° +182 - 2(14)(18)cos @