Multiply by 2 which will get you a diameter and then multiply it by pi which is 3.14.
The scientific notation of .2 is
2 × 10^<span>-1</span>
4x + 10y
Hope it’s right
Best luck with your studying
The length of a circumference: l=πD
l₁=π×5=5π
l₂=π×15=15π
Then l₂÷l₁=15π÷5π=3 and the answer is B)
You can do it just believe in your self
