Question

Walk me through this

Answer 1

If the two triangles are congruent, then their sides must have same lengths..

Answer 2

So, BC = EF

Just plug in their values and find x here..

Answer 3

Okay so 2x + 2 is BC?

Answer 4

Put those values at the same time, I mean to equate them..

Answer 5

How do I find x?

Answer 6

You know what BC is and you also know what is EF, just plug in both values, equate them and try to find x..

Answer 7

By BC = EF, I mean:

3x + 1 = 2x + 2

Answer 8

Now subtract 2x from both the sides first..

Answer 9

X = 1

Answer 10

Yep..