3 years ago

Find the value of x pls

Mathematics

1 answer:

EastWind [94]3 years ago

4 0

That is an equilateral triangle therefore all the angles must be the same length so "x" is 12

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alukav5142 [94]

Answer:

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Step-by-step explanation:

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2 years ago

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PLEASE HELP!!!!

Ksenya-84 [330]

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3 years ago

Two of the angles in a triangle measure 56° and 28°. What must be the measure of the third angle?

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3 years ago

a surveyor measures the distance to the two landmarks as shown in the diagram what is the distance d. between the landmarks

Inessa [10]

<h3>The distance between two landmarks is 123 meters</h3>

<em><u>Solution:</u></em>

We have to find the distance between two landmarks

<em><u>Use the law of cosines</u></em>

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$c^2 = a^2 + b^2 - 2ab\ cos c$

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From figure,

a = 90

b = 130

c = d

Therefore,

$d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123$

Thus, the distance between two landmarks is 123 meters

8 0

4 years ago

Please help. I already asked once but the answer isn't right. Pic is attached... how do I find the value of x?

Viefleur [7K]

x = 5

Step-by-step explanation:

I wasn't sure if you needed just x or if you needed the other angles so I did both.

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2 years ago

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