Question

If AB = 2x–8 and AC = x+9, What is the length of BC?

Answer 1

Answer:

17

Step-by-step explanation:

2x-8=x+9

x=17

Answer 2

ANSWER

BC=17 units

EXPLANATION

The given triangle is an isosceles triangle.

We have

AC=AB

This implies that,

$x + 9 = 2x - 8$

Group similar terms and simplify to get:

$2x - x = 9 + 8$

$x = 17$

Side BC is x units. But x=17

Therefore BC is 17 units.