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ruslelena [56]
3 years ago
15

If ABC is congruent to DBE find x

Mathematics
2 answers:
Whitepunk [10]3 years ago
7 0
Answer

X=44 degrees

Explanation:I just did that in one of my questions in my work and I got it correct.

IGOOD LUCK AND HOPE U GET IT CORRECT ALSO :)
murzikaleks [220]3 years ago
6 0

Answer:

x=44 degrees

Step-by-step explanation:

5y-4 has to equal 81 in order for the two triangles to be congruent.

The sum of the interior angles of a triangle is always 180 degrees.

81+51=132 degrees

180-132=48

x+4=48

x=48-4

x=44 degrees

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in the accompanying diagram of the unit circle, the ordered pair _ represents the point where the terminal side of 0 intersectio
koban [17]

The ordered pair of a unit circle is represented as:

(x,y) \to (\sin(\theta),\cos(\theta))

The point where the terminal side of \tehta\theta intersect with the unit circle is: 240

The given parameter can be represented as:

(x,y) \to (-\frac{\sqrt 3}{2},-\frac{1}{2})

This means that:

\sin(\theta) = -\frac{\sqrt 3}{2}

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Let the angle between the x-axis and the terminal side be \alpha

So, we have:

\theta = 180 + \alpha

Using \cos(\theta) = -\frac{1}{2}

The equation becomes

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Apply cosine formula

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Divide both sides by -1

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Take arccos of both sides

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\alpha= \cos^{-1}(0.5)

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Recall that:

\theta = 180 + \alpha

\theta = 180 +60

\theta = 240

Read more at:

brainly.com/question/11907132

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