Answer:
circumference of the circle is 25.13 cm
area of the circle is 50.27 square cm
Explanation:
The formula for the circumference of a circle is C = 2πr.
Using this formula, we can find the circumference of the circle with radius 4cm:
C = 2πr
C = 2π(4)
C = 8π
C = 25.13
So the circumference of the circle is 25.13 cm (rounded)
The formula for the area of a circle is A = πr^2.
Using this formula, we can find the area of the circle with radius 4cm:
A = πr^2
A = π(4^2)
A = 16π
A = 50.27
So the area of the circle is 50.27 square cm (rounded)