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Sindrei [870]
2 years ago
9

Triangle ABC has angle measures as shown below. Using the information in the

Mathematics
2 answers:
iren [92.7K]2 years ago
4 0
35 + 52 + 3(x + 2) = 180
87 + 3x + 6 = 180 ( add the like terms and use distributive property)
93 + 3x = 180
-93 -93
3x = 87
÷3 ÷3
x = 29
( the sum of all triangle angles is 180)
irina1246 [14]2 years ago
3 0

Answer:

x=29 i know because i put that and it was a 100

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Answer:

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Step-by-step explanation:

The angle sum theorem tells you the sum of angles in a triangle is 180°. The definition of a linear pair tells you the two angles of a linear pair total 180°. Together, these relations tell you that an exterior angle of a triangle is equal to the sum of the remote interior angles.

In this geometry, the angle marked 78° is exterior to the left-side triangle. That means ...

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The value of 'o' is 54.

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<em>Additional comment</em>

n° is the supplement of 78°, so is 102°.

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