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Mathematics 7 Online
OpenStudy (anonymous):

In <) BCD with right angle

OpenStudy (anonymous):

|dw:1366662510765:dw|

OpenStudy (anonymous):

All corners summed up is equal to 180 degrees

OpenStudy (anonymous):

so : 180 degrees = 90 degrees + (2x+23) degrees +(5x+32)

OpenStudy (anonymous):

6x+55=90

OpenStudy (anonymous):

srry 7x+55=90

OpenStudy (anonymous):

x=5

OpenStudy (anonymous):

^

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