see my reply below in
http://www.jiskha.com/display.cgi?id=1208400886
Please answer b)only
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
2 answers
yes, the sum of angles is 180 in triangle.
b. you know the third side (PYTH theorm). You can find angles from sin, cosine.
b. you know the third side (PYTH theorm). You can find angles from sin, cosine.
5 answers