The circumference 1 = π*D=8π
if D=4, the circumference 2 =4π=1/2* the circumference 1
⇒ a is the answer
Pi x Radius squared should be your answer.
Step-by-step explanation:
they are not equivalent
Answer:
Any place-value position is 10 times greater than the position to its right and / of the position to its left.
