<u>Answer:</u>
If the circumference of a circle is changed from 9 cm to 3 cm, then the diameter decreases by a factor of 3.
<u>Solution:</u>
Given, the circumference of a circle is changed from 9 cm to 3 cm,
We have to find how will the diameter change from the given equations?
We know that, diameter = 2
radius and circumference = 2π
radius.




Hence, the diameter decreases by a factor of 3.
Answer:
89n
Step-by-step explanation:)
For substitution this is what answer I got but I don’t know if that’s what your looking for
Answer:
28.27m
Step-by-step explanation:
the formula for area of a circle is
A= π x r^2
A = π x r^2 = π x 3^2 = 28.27433