Respuesta :

Answer:

B.

Step-by-step explanation:

cos 23 = adjacent side / hypotenuse

=  12/13.

Moalhazaa

Answer:

B

Step-by-step explanation:

Just put cos23 in your calculator then (=)

and finally press (S-D)

Save this answer(on sheet or paper) and check these answers by putting in your calculator each other and (S-D).