Question

Solve triangle. Round answer to nearest tenth.

Please help me i am honestly desperate at this point.

Answer 1

<C = 90 degrees

<A = 22.2 degrees

<B = 67.8 degrees

AC = 13.24 yd

BC = 5.40 yd

AB = 14.3 yd

Explanation:

cos 67.8 = BC/14.3

(Cos 67.8)*(14.3) = BC

(0.378)*(14.3) = 5.40 yd

Pythagoras theorem : a^2 + b^2 = c^2
5..40^2 + AC = 14.3^2
AC^2 = 14.3^2 - 5.40^2

AC = square root (175.33)
AC = 13.24

<C = 90 degrees and <B = 67.8 degrees

<A = 180 - 90 - 67.8 = 22.2 degrees