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olga nikolaevna [1]
3 years ago
11

Whats the circumference of a circle with a radius of 21 meters

Mathematics
2 answers:
r-ruslan [8.4K]3 years ago
8 0

Answer:

131.88 m^2

Step-by-step explanation:

Circumference formula: 2pi × radius

2 × 3.14 = 6.28

6.28 × 21 = 131.88

Bogdan [553]3 years ago
7 0

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

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