Question

Find AB
I need help !

Answer 1

9514 1404 393

Answer:

d. AB = 54

Explanation:

The triangle is isosceles, so AB = AC.

(4x +6) = (5x -6)

12 = x . . . . . . . . . . . . add 6-4x to both sides

Then the length of AB is ...

AB = 4x +6 = 4(12) +6 = 48 +6

AB = 54