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Mathematics 21 Online
OpenStudy (anonymous):

someone can check out if my answers are right, please

OpenStudy (anonymous):

OpenStudy (anonymous):

1-9 checks right

OpenStudy (anonymous):

11. 1/3 12. 120 degrees

OpenStudy (anonymous):

11 & 12 are wrong, 1/3 120

OpenStudy (anonymous):

please can you explain to me why is 120 degrees

OpenStudy (anonymous):

60 minutes is 360 degree 20 minutes is 360/3=120 dgrees

OpenStudy (anonymous):

hanzi the #4 - # 9 are correct

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