Answer:
B. 28.26
Step-by-step explanation:
First you have to find the circumference:
R²= 3²=9
Then you multiply your circumference by 3.14 to get you answer:
9·3.14=28.26
6.0
: (2.0+(2.0+2.0)) = 6.0
the length is 40m
45
(replace m with 7 and replace n with 3)
6 x 7 = 42 then you add 3 = 45
