Question

in an isosceles triangle the base angles are equal and the vertex angle is 80°find the measure of the base angle

Answer 1

Vertex angle = 80°
All angle sum = 180°
Other 2 angles =180-80= 100°
Both the angles are same as given
Therefore each of the angle is 50° (50x2=100)

Answer 2

Hey

here is ur answer....

Let the base angles be x.

by Angle sum property,

x+x+80=180°

2x=180-80

2x=100

x=100/2

x=50°

Hence measures of base angles ase 50°.

Hope this helps u....

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