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Mathematics 6 Online
OpenStudy (anonymous):

The arms of a compass are each 12.5 cm long and their ends are 6.5 cm apart. Find the angle between them. how would this be set up? in a circle? Which side is the hypotenuse?

OpenStudy (whpalmer4):

Draw a picture:|dw:1391703928286:dw| Note that \(a\) in this drawing is half of the angle between them.

OpenStudy (whpalmer4):

You should be able to find the value of \(a\) from the definition of the \(\sin\) function in a right triangle.

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