Question

The radius of a circle is 4 yards. What is its circumference?

Answer 1

Answer:

See answer below

Step-by-step explanation:

Hi there,

To get started, recall the circumference formula.

$C = \pi r^{2}$ where π is the irrational number 3.14159... and r is the radius of the circle. Circumference is like perimeter but for a circle; it is the distance around the boundary.

$C = \pi (4 \ yd)^{2}= 16\pi \ yd^{2} = 50.27 \ yd^{2}$ (approximately)

thanks,

Answer 2

Answer:

C≈25.13yd

Step-by-step explanation:

The circumference of a circle can be found by multiplying pi ( π = 3.14 ) by the diameter of the circle. If a circle has a diameter of 4, its circumference is 3.14*4=12.56. If you know the radius, the diameter is twice as large.

Hope that was helpful.Thank you!!!