Question

What is the length of BC?

18
24
20
22

Answer 1

22

Explanation:

We have the isosceles triangle.

`AC\cong AB`

Therefore we have the equation:

`2x-24=x-2` add 24 to both sides

`2x-24+24=x-2+24`

`2x=x+22` subtract x from both sides

`2x-x=x-x+22`

`\boxed{x=22}`

`BC=x`

thereofre

`BC=22`

Answer 2

22

Explanation:

it shows in the image that AC and AB are isosceles so 2x - 24 would be equal to x - 2

2x - 24 = x -2 ➡ x = 22