marisolx marisolx

24-05-2017
Mathematics

contestada

In triangle ABC, angle A= 74, a = 126, and b= 84. Find angle B

Respuesta :

24-05-2017

Angle B is 39.855°, hope this helps

Answer Link

Blacklash Blacklash

29-06-2019

Answer:

Angle B = 39.85°

Step-by-step explanation:

We have sine formula

[tex]\frac{a}{sinA}=\frac{b}{sinB}=\frac{c}{sinC}[/tex]

Here A = 74°, a = 126 and b =84

Substituting

[tex]\frac{126}{sin74}=\frac{84}{sinB}\\\\sinB=0.6408\\\\B=39.85^0[/tex]

Angle B = 39.85°

Answer Link

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