Find the indicated angle 𝜃. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 10, c = 7, and ∠C = 35°. )

Question

Round your answer to one decimal place. Assume that 𝜃 is greater than 90°.

Answer 1

SinA = (10/7)SinC = (10/7)Sin35 = about 0.8194

A = Sin^-1(.8194) = about 55 degrees or 125 degrees

use a calculator with a trig function

b = about 12.2

B = about 90 degrees