Answer: 66 is the circumference
Step-by-step explanation: Formula of circumference: 2 times pi times R
R is radius and Diameter is 2 times of R. Formula of circumference can also be: pi times R. 22/7 times 21 is 66.
Answer:
They are not similar.
Step-by-step explanation:
Lwh = (3+3+6) (4) (7)
12 x 4 x 7 = 336