Posted by lorie on Friday, January 14, 2011 at 5:01pm.
Find the number of degrees in the measure of one of the base angles of an isosceles triangle, if the measure of the vertex angle is 36 degrees less than the sum of the measures of the base angles.

geometry  Reiny, Friday, January 14, 2011 at 5:03pm
http://www.jiskha.com/display.cgi?id=1295037448

geometry  Henry, Saturday, January 15, 2011 at 9:04pm
Sum = x + x = 2x,
Vertex angle = (2X  36).
2X + (2X  36) = 180,
4X  36 = 180,
4X = 180 + 36 = 216,
X = 216 / 4 = 54 DEG.
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