Question

GEOMETRY HELP, COSINE, SINE TANGENT

please help i don’t know what i am doing

Answer 1

Explanation:

You HAVE to remember: For RIGHT trinagles:

S-O-H-C-A-H-T-O-A

Sin Φ = Opposite LEG / Hypotenuse

For this RIGHT triangle, this becomes

sin (31) = 11/x

then x = 11/sin(31) = 21.4 units ( You have to use a calculator)