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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