Need help with this. I'm pretty sure it's just 4x-4=25 (since 30-25=5 and the triangles are similar), then you solve for x?

Just looking for some help here.

Guest Mar 15, 2018

#1**+2 **

There are a few ways to think about this....

△JKL is similar to △MNP by AA similarity.

So each side of △MNP is some scale factor times the corresponding side of △JKL .

MN = JK * s where s is the scale factor.

30 = 25 * s

30 / 25 = s

So each side of △MNP is 30/25 times the corresponding side of △JKL .

MP = 30/25 * JL

4x - 4 = 30/25 * 20

4x - 4 = 24

I'll let you finish solving for x .

hectictar
Mar 16, 2018