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True [87]
3 years ago
6

Find the exact circumference of a circle with the given radius. 3½ cm C = 7.5π cm 7π cm 6.25π cm

Mathematics
2 answers:
Nimfa-mama [501]3 years ago
4 0
C = 2 * (pi) * r
C = 2 * (pi) * 3.5.....3 1/2 = 3.5
C = (2 * 3.5) * (pi)
C = 7(pi) cm <===
Anna [14]3 years ago
4 0

Answer:

(B) 7{\pi}cm

Step-by-step explanation:

We are given the radius of the circle that is equal to 3\frac{1}{2}cm.

Now, circumference of circle is given as:

C=2{\pi}r

C=2{\pi}(3\frac{1}{2})

C=2{\pi}(\frac{7}{2})

C=7{\pi}cm

Therefore, the circumference of the circle is 7{\pi}cm.

Hence, option B is correct.

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