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weqwewe [10]
3 years ago
9

How to find this answer using sine or cosine law?

Mathematics
1 answer:
SashulF [63]3 years ago
5 0

We know that According to Law of Sines :

\frac{SinA}{a} = \frac{SinB}{b} = \frac{SinC}{c}

where A - B - C are the Angles of the Three Vertices of the Triangle

a - b - c are the lengths of the Opposite sides of the Angles of the Respective Vertices A - B - C

From the Given Triangle we Can Notice that :

\frac{SinC}{28} = \frac{Sin92}{41}

SinC = \frac{0.999\times28}{41}

SinC = \frac{27.98}{41}

SinC = 0.682

C = \sin^-^1(0.682)

C = 43°

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Answer:

\large\boxed{Q2.\qquad C.\ -2x+y=-2}\\\boxed{Q4.\qquad C.\ y=3x+12}

Step-by-step explanation:

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The point-slope form of an equation of a line:

y-y_1=m(x-x_1)

m - slope

The formula of a slope:

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y-6=2x-8      <em>add 6 to both sides</em>

y=2x-2          <em>subteact 2 from both sides</em>

-2x+y=-2

Q4:

The slope-intercept form of an equation of a line:

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