Answer:
np
Step-by-step explanation:
3.14(rs + r2)
3.14 (r= 2 x s= 3 + r =2 x 2)
3.14 ( 6+4)
3.14 (10)
3.14 x 10 = 31.4 units ² I guess
C
YES!!!
12
1,3,5,7,9
Odd numbers are 1, 3, 5, 7, 9