If these two shapes are similar, what is the measure of the missing length r?

You can set up a ratio problem

take what you know and set it equal to what you don't know

4/6 = r/15

Cross multiply and get:

60 = 6r

divide by 6

r = 10

answer are

step-by-step explanation:

i get you, what you should do is think of the positive things that would come out of it. it will make yours parents proud and raise your grade. you should always try and if you can't focus tell the teacher.