in an isosceles triangle the vertex angle is one upon fourth of each of the equal angles find the angles of the triangle
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in an isosceles triangle the vertex angle is one upon fourth of each of the equal angles find the angles of the triangle
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Answer:
let the other two angles be x
as angles on the base of isosceles triangle are equal.
the third angle is 1/4 of x
a.t.q
x+x+1/4x=180. (angle sum property)
2x+1/4x=180
(8x+1x)/4=180
9x=180*4
x=180*4/9
x=80
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