Question

Solve the triangle . (obtuse) B=106.40° ,a=17.38, b=67.75

Answer 1

can you draw the triangle?

Answer 2

@aivantettet26 drawn,

Answer 3

thank you!

Answer 4

what's the other sides? @aivantettet26

Answer 5

give me a minute :)

Answer 6

using cosine rule let's solve for c

Answer 7

with our initially given angle and with the value of b
b^2 = a^2 + c^2 - 2ac(cos106.4)

Answer 8

67.75^2 = 17.38^2 + c^2 - 2(17.38)(cos106.4)c