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Vlad1618 [11]
2 years ago
10

Find the value of "x". ​

Mathematics
1 answer:
Helen [10]2 years ago
6 0

Answer:

x = 4.52984

Step-by-step explanation:

Since the triangle has a right angle you need to use the the trigonometric function cos (theta which is the angle given that isn't 90°) = adjacent / hypotenuse (adjacent is the side close to the angle you're using which is 22° and the hypotenuse is the longest side of the triangle that is in the away from the right angle)

From there you plug in the numbers which now become cos (22°) = 4.2 / x

Then you isolate the x by multiplying it to both sides so it's on the left and divide both sides by cos (22°) which will end you up x = 4.2 / cos (22°)

Then you just divide and you 4.52984

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Step-by-step explanation:

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3 years ago
3. Complete the sentence by choosing the proper option from the given choices.
DanielleElmas [232]

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B. is exactly 1 triangle

Step-by-step explanation:

For any given triangle, the sum of the internal angles is 180^{o}. Thus from the given question, adding the given angles;

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Therefore, only one triangle can be produced with the given measure of angles. This implies that there is exactly one triangle. So that the correct option is B.

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Answer:

<u>10</u>

Step-by-step explanation:

Formula :

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Finding a₆ :

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