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densk [106]
3 years ago
15

What is the value of X. Triangles 39 is one angle and 102 is the other angle

Mathematics
2 answers:
sweet-ann [11.9K]3 years ago
6 0
All three angles on a triangle always equal 180°.
Example: 100°+40°+40°=180°

102+39=141°
180-141=39°
x = 39°










olchik [2.2K]3 years ago
3 0
When you add up all the angles it should equal to 180 so 180-102=78 then 78-39=39 so x=39
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Svetach [21]
We know that

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the answers are
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cos B=5/13

cot A=adjacent side angle A/opposite side angle A
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opposite side angle A=10 units
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cot B=adjacent side angle B/opposite side angle B
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