Relax

Respuesta :

Answer:

choice A

Step-by-step explanation:

Sin A=12/40

sin A=.3

angle A=17.4576 degrees

Tan 17.4576=0.3145

Tan A=0.3145

Choice a, 3x(sr root of 91)/91=0.3145

Answer:

A.

Step-by-step explanation:

3√91/90