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December 21, 2014

December 21, 2014

Posted by **Abigail** on Wednesday, April 16, 2008 at 11:09pm.

a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle?

b)Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

- trig -
**Reiny**, Wednesday, April 16, 2008 at 11:11pmsee my reply below in

http://www.jiskha.com/display.cgi?id=1208400886

- trig -
**bobpursley**, Wednesday, April 16, 2008 at 11:12pmyes, the sum of angles is 180 in triangle.

b. you know the third side (PYTH theorm). You can find angles from sin, cosine.

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