Question

POP QUIZ: If A = 130◦, a = 52, b = 31, solve the triangle. (If there is no solution, give −1 as your
answer.)
a) Find B. (If more than one solution, give
the larger one.)
Answer in units of◦
b) Find the corresponding angle C.
Answer in units of◦
c) Find the corresponding side c. POP QUIZ: If A = 130◦, a = 52, b = 31, solve the triangle. (If there is no solution, give −1 as your
answer.)
a) Find B. (If more than one solution, give
the larger one.)
Answer in units of◦
b) Find the corresponding angle C.
Answer in units of◦
c) Find the corresponding side c. @Mathematics

Answer 1

law of sines for this one
use
\[\frac{\sin(A)}{a}=\frac{\sin(B)}{b}\] to get
\[\frac{\sin(130)}{52}=\frac{\sin(B)}{31}\] so
\[\sin(B)=\frac{31\sin(130)}{52}\] and
\[ B=\sin^{-1}(\frac{31\sin(130)}{52})\] then a calculator.

Answer 2

so i use what ? to find angle c and side c