i have one quick question...

a problem gives us that:

A= 60 degrees, a=9, c = 10...

my only concern is that if the remaining two angles are also 60...

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- May 28th 2008, 05:04 PM>_<SHY_GUY>_<Laws Of Sine
i have one quick question...

a problem gives us that:

A= 60 degrees, a=9, c = 10...

my only concern is that if the remaining two angles are also 60... - May 28th 2008, 05:23 PMJonboy
you can't just assume that. you can assume though that the other two angles will add up to 120 degrees though.

Use Law of Sines:

Criss-Cross multiply:

So:

We need the angle, so we use inverse Sin ( ).

The other angle is approximately