Question

What is the circumference of a circle with diameter 7 cm?
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Answer 1

Answer:

Answer. the circumference of the circle is 22cm.

Step-by-step explanation:

Given diameter of a circle is(d)=7cm.

Now, we know that circumference of circle is =πd, where d is diameter of circle.

So, here circumference is = π×7cm

= 22

7 ×7cm

Circumference =22cm

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Answer 2

Answer:

22cm

Step-by-step explanation:

$d = 7 \\ r = \frac{7}{2} \\ circumference = 2\pi \times r \\ \: \: \: = 2 \times \frac{22}{7} \times \frac{7}{2} \\ \: \: \: = 22cm$