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

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Belch

Mathematics

16 February, 20:57

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

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Roy Henson · 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.