4. The figures below are similar. What is the length of x?
15 in
6 in
4 in
10 in
8 in
X
help pls

X = 20in

Step-by-step explanation:

6in × 2.5 = 15in

4in × 2.5 = 10in

8in × 2.5 = 20in

I hope this helps! I'm sorry if wrong.

i leave the calculator work to you.

7. diameter 4 miles, circumference 4π miles

8. radius 0.2 miles, circumference 0.4π miles

[this is a bad problem because the actual radius of a car on the track is less than 0.2 miles so the answer is less than 0.4π miles]

9. radius 6 feet, circumference 12π feet

10. diameter 14 cm, circumference 14π cm

11. diameter 4.8 feet, circumference 4.8π feet