Question

Help me please please please please

Answer 1

base angles are equal ABC is an isosceles triangle

an isosceles triangle with 2 equal sides AB=Bc

we write the equation 6x=3x+9

we solve:

6x-3x=9

3x= 9

x=9/3 =3

AB = 6x= 6×3 =18

Explanation:

Answer 2

18

Explanation:

Since angles A and C are congruent, segments AB and BC are congruent.

6x = 3x + 9

3x = 9

x = 3

AB = 6x = 6(3) = 18

Answer: 18