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2 years ago

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

Mathematics

2 answers:

sweet-ann [11.9K]2 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]2 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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Now that you have y, plug it into the second equation and solve for x.

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Last step is to plug your x- and y-values in to both equations to check your work.

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$\frac{3}{8} * \frac{3}{3} = \frac{9}{24} ; \frac{1}{3} * \frac{8}{8} = \frac{8}{24}$

$\frac{9}{24} + \frac{8}{24} = \frac{17}{24}$ <--True

$1+7(1)=8$
$1+7=8$ <--True

Answer:
$x=1 \\ y=1$

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