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Gennadij [26K]
2 years ago
8

Find the value of x. Then find the angle measures of the polygon.

Mathematics
1 answer:
Minchanka [31]2 years ago
5 0

Answer:

35° , 40° , 105°

Step-by-step explanation:

the sum of the 3 angles in the triangle = 180° , then

3x + x + 40 = 180 , that is

4x + 40 = 180 ( subtract 40 from both sides )

4x = 140 ( divide both sides by 4 )

x = 35

3x = 3 × 35 = 105

the 3 angle measures are 35° , 40° , 105°

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