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Masja [62]
4 years ago
12

A triangle measures 12 degrees and 40 degrees what is the measurement of the 3rd angle of the triangle

Mathematics
1 answer:
Vinvika [58]4 years ago
3 0

Answer:

\boxed{ \bold{ \huge{ \boxed{ \sf{128°}}}}}

Step-by-step explanation:

Sum of angles of triangle add up to 180°

Let the third angle be x

Create an equation and solve for x

\sf{x + 12° + 40° = 180°}

\dashrightarrow{ \sf{x + 52° = 180°}}

\dashrightarrow{ \sf{x  = 180° - 52°}}

\dashrightarrow{  \boxed{\sf{x = 128°}}}

Hope I helped!

Best regards! :D

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