Answer:
circumference of a circle = 2*pi*radius
just multiply 3.14 (pi) by 2 by the radius/diameter divided by 2
Do 15.5×12
then you will know how much ribbon you need. Hope that helps!
-10 or X=1.25
hope this helps
Answer:
Option A.
Step-by-step explanation:
we know that
The circle 1 and circle 2 have the same center
The ratio of its radius is equal to the scale factor
The scale factor is equal to

<em>That means</em>
The radius of circle 1 is 4 times the radius of circle 2
therefore
Circle 1 is a dilation of circle 2 with a scale factor of 4