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3 years ago

Solve the triangle given two angles and one side.

Mathematics

1 answer:

Rasek [7]3 years ago

3 0

Answer:

a = 102.05

b = 393.76

B = 93°

Step-by-step explanation:

The law of sines tells you ...

a/sin(A) = b/sin(B) = c/sin(C)

Since the sum of angles in a triangle is 180°, angle B must be ...

B = 180° -72° -15° = 93°

and the unknown sides must be ...

a = c/sin(C)·sin(A) = 375·sin(15°)/sin(72°) ≈ 102.05192

B = 93°

b = 375·sin(93°)/sin(72°) ≈ 393.75796

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The rounding requirement got cut out of your picture, so we can't help you with that.

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scoray [572]

Step-by-step explanation:

With this kind of problem, we're looking at an equation in the form

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Answer:

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Step-by-step explanation:

Let

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substitute equation B in equation A and solve for x

$x+(\frac{2}{3}x)=85$

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