avebeeman
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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​

HIGHSCHOOL GEOMETRYLAWS OF COSSINplease helpit also says that it is acute and I dont know how to factor that into my answer class=

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Answer:

B = 75°

Step-by-step 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°

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