Asked by Miracle
Construct angle ABC in which AB=7cm,AC=9•5 and ABC=120°.measure BC.
Answers
Answered by
mathhelper
Ok, I did that, after assuming that you meant: AC = 9.5
Not going to measure, since we can find BC using basic trig
SinC/7 = sin120/9.5
sinC = 7sin120/9.5 = ...
angle C = appr 39.65°
which makes angle A = 20.35°
so repeat:
BC/sin20.35 = 9.5/sin120
BC = 9.5sin20.35/sin120
= ....
compare with your measurement
Not going to measure, since we can find BC using basic trig
SinC/7 = sin120/9.5
sinC = 7sin120/9.5 = ...
angle C = appr 39.65°
which makes angle A = 20.35°
so repeat:
BC/sin20.35 = 9.5/sin120
BC = 9.5sin20.35/sin120
= ....
compare with your measurement
There are no AI answers yet. The ability to request AI answers is coming soon!
Submit Your Answer
We prioritize human answers over AI answers.
If you are human, and you can answer this question, please submit your answer.