Thursday

October 2, 2014

October 2, 2014

Posted by **Sue** on Saturday, May 8, 2010 at 11:07am.

- Trig. -
**Reiny**, Saturday, May 8, 2010 at 11:40ammake yourself familiar with the

30°-60°-90° triangle whose sides are in the ratio

1 : √3 : 2

make a sketch to see.

then sin B = 1/2 and

csc B = 2

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