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iogann1982 [59]
2 years ago
7

Find the value of x. (3x+20) º 12°

Mathematics
2 answers:
PolarNik [594]2 years ago
7 0

Answer:

x=32°

Step-by-step explanation:

2x+3x+20=180 co interior angle

5x=180-20

x=160/5=32°

kondor19780726 [428]2 years ago
3 0

Answer:

12°

Step-by-step explanation:

a straight line adds up to 180°

(3x+20)+2x=180

3x+2x+20=180

5x+20=180

5x=180-20

5x=60

5x/5=60/5

x=12

x=12°

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