Question

HIGHSCHOOL GEOMETRY

LAWS OF COS/SIN
please help
it also says that it is acute, and I dont know how to factor that into my answer​

Answer 1

B = 75°

Explanation:

Using the Sine rule:

a / sin A = b / sin B = c / Sin C

a / sin A = b / sin B

20 / sin 48 = 26 / sin B

Cross multiply :

Sin B * 20 = sin 48 * 26

Sin B = (sin 48 * 26) / 20

Sin B = 0.9660882

B = sin^-1(0.9660882)

B = 75.036

B = 75°