Answer:
r=5
Step-by-step explanation:
Circumference of a circle =
Since w are given that the circumference of circle is 31.4 cm
So,
[tex5= r[/tex]
So, radius of given circle is 5 cm
Area of circle =
=
=
Thus the area of circle is 78.5 sq.cm.
Hence the radius of given circle is 5 cm and the area of the circle is 78.5 sq.cm.
