SOLUTION: calculate the angle of an isosceles triangle in which each base angle is four times the vertical angle

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Question 1142430: calculate the angle of an isosceles triangle in which each base angle is four times the vertical angle
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +a+ = the top angle
+4a+%2B+4a+%2B+a+=+180+
+9a+=+180+
+a+=+20+
+4a+=+80+
The angles are 20 - 80 - 80
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check:
+20+%2B+80+%2B+80+=+180+
OK