Answer:
8 units because the diameter is the side to side length of the circle so when you count it you get 8 units.
X=3. 33x-21x equals 12x. 24+12=36. 12x divided by 36 equals 3
3.14(a2+ab)
3.14(3(2)+3(4)
3.14 +6+12
3.14+18
21.14 I think that's it sorry if it's not.
