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brendaad32 brendaad32
  • 21-09-2018
  • Mathematics
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Help me please PRECALCULUS correct answers only please

Help me please PRECALCULUS correct answers only please class=

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lisboa lisboa
  • 21-09-2018

In triangle ABC, two angles angle A  and C  are already given

Angle A =33.7

Angle C = 26.4

We know that the sum of angles in a triangle is 180 degree

Angle A + B + C = 180

33.7 + angle B + 26.4 = 180

60.1 + angle B = 180

Angle B = 119.9 degrees

Now we use sin angle formula to find b. Given a=24

[tex]\frac{sin (A)}{a} =\frac{sin(B)}{b}[/tex]

[tex]\frac{sin(33.7)}{24} =\frac{sin(119.9)}{b}[/tex]

[tex]b =\frac{sin(119.9)*24}{sin(33.7)}[/tex]

b = 37.4979

Round answer to two decimal places

b = 37.50


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