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stealth61 [152]
3 years ago
15

What is angle B? Round the value to the nearest degree

Mathematics
1 answer:
zhuklara [117]3 years ago
4 0

Answer: m\angle B=46\°

Step-by-step explanation:

For this exercise you need to use the Inverse Trigonometric function arccosine, which is defined as the inverse function of the cosine.

Then, to find an angle α, this is:

\alpha =arccos(\frac{adjacent}{hypotenuse})

In this case, you can identify that:

\alpha =m\angle B\\\\adjacent=AB=20\ cm\\\\hypotenuse=BC=29\ cm

Then, substituting values into \alpha =arccos(\frac{adjacent}{hypotenuse}) and evaluating, you get that the measure of the angle "B" to the nearest degree, is:

m\angle B=arccos(\frac{20\ cm}{29\ cm})\\\\m\angle B=46\°

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The two triangles with the given perimeter is attached .

Perimeter is the sum of all sides.

For the first triangle , sies are  2a,2a and b.

So the perimeter is

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For the second triangle, sides are a,a, and 2a+b. Therefore perimeter is

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H+4&lt;6<br> How do I solve the inequality?
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Hello, may someone plz help me
fenix001 [56]

Answer:

Step-by-step explanation:

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4 0
3 years ago
Let X denote the total snowfall in the Twin Cities in December of a given year, measured in centimeters. The five-number summary
Gre4nikov [31]

Answer:

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  5. Now let's plug in our values!
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