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VLD [36.1K]
2 years ago
14

Can someone please help me ASAP ​

Mathematics
2 answers:
laiz [17]2 years ago
7 0

Answer:

42 degrees

Step-by-step explanation:

Strike441 [17]2 years ago
7 0

Answer:

x=42°

Step-by-step explanation:

In any triangle, when all three angles are added together, their sum will always be 180°:

∠1+∠2+∠3=180

Insert any known values:

29+109+x=180

Simplify the addition:

138+x=180

Use inverse operations to find angle three. Subtract 138 from both sides:

138-138+x=180-138\\\\x=42

Therefore, the unknown angle is 42°.

:Done

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