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Mathematics 15 Online
OpenStudy (anonymous):

i have a question

OpenStudy (anonymous):

OpenStudy (mathstudent55):

|dw:1436138953383:dw|

OpenStudy (anonymous):

so subract 140 and 40 then divide by 2

OpenStudy (mathstudent55):

No. Let me show you with the figure.

OpenStudy (mathstudent55):

|dw:1436139199828:dw|

OpenStudy (mathstudent55):

The major arc minus the minor arc, then divided by 2, equals the angle.

OpenStudy (mathstudent55):

\(40 = \dfrac{1}{2}(x - 140)\) Solve this equation for x.

OpenStudy (anonymous):

k 1 sec

OpenStudy (anonymous):

x=220 ?

OpenStudy (mathstudent55):

Correct.

OpenStudy (mathstudent55):

\(40 = \dfrac{1}{2}(x - 140)\) \(80 = x - 140\) \(220 = x\) \(x = 220\)

OpenStudy (anonymous):

k thanks :)

OpenStudy (mathstudent55):

You're welcome.

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