Answer:
C =131.88 meters
Step-by-step explanation:
The circumference of a circle is given by
C = 2*pi*r
where r is the radius
C = 2 * pi * 21
C = 42 pi
If we approximate pi by 3.14
C = 42(3.14)
C =131.88 meters
Answer:
131.88 m^2
Step-by-step explanation:
Circumference formula: 2pi × radius
2 × 3.14 = 6.28
6.28 × 21 = 131.88
