Question

the vertex angle of an isosceles triangle is 27 degree less than each of the base angle find each angle of the triangle

the vertex angle of an isosceles triangle is 27 degree less than each of the base angle find each angle of the triangle​

Answer 1

Answer: 42, 69, 69 degrees

Step-by-step explanation:

Let the base angles be m degree each. Then the vertex angle is m-27

So

m+m+m-27=180

3m=207

m=69

So the angles are 42, 69 and 69

Answer 2

Answer:

let the base angle be x degree. then x -27

x+x+x-27=180

3x-27=180

3x=180+27

3x=207

x=207/3

x=69

each two angle is 69

69+69+x=180

138+x=180

x=180-138

x=42