Please help me!! Thanks in advance!

1) 12m

2)15.2ft

3) 22km

4) 10ft

5) 4.4in

6) 12km

7) 10cm

8) 2cm

9) 56.55cm

10) 43.98ft

11) 71.63km

12) 23.88cm

13) 138.23yards

14) 100.53ft

15) 50.27yd²

16) 95.03in²

17) 52.81ft²

18) 153.94mi²

19) 162.86mi²

20)452.39ft²

Step-by-step explanation:

Step-by-step explanation:

To find the diameter of a circle, you multiply the radius (the radius is the distance from the outside of the circle to the middle) by 2.

Ex: the first one has 6m as the radius. So you would multiply the 6 by 2. Which would be 12.

The radius is half of the diameter. So for number 8, the answer would be 2.

hope this helps and that it wasn't to confusing  :)

no he doesnt because "-16' is negatiive

step-by-step explanation: