Question

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

Answer 1

let the base angle be x,

x+x+80° = 180° (angle sum property of a triangle)
2x = 180-80
x = 100/2
x = 50°

so, the base angles are 50° each


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Answer 2

Answer:

50 degrees

Step-by-step explanation:

x+x+80° = 180° (angle sum property of a triangle)

2x = 180-80

x = 100/2

x = 50°