Question

Find all solutions for a triangle with A=140, b=10, and a=3


a.


B = 15.4°; C = 147.6°; c = 20.2


c.


B = 15.4°; C = 134.5°; c = 20.2




b.


B = 16.2°; C = 147.6°; c =20.2


d.


no solutions

Answer 1

do you know that the biggest angle goes with the biggest side.
if angle A is 140 degrees) then
the other two angles *together* add up to 40 degrees)
so both B and C are less than 40. that means their sides are less than the side opposite angle A, so less than 3. But they tell you b is 10. that is not possible.