Question

The diameter of a circle is 28 cm. What is the length of its circumference?

Answer 1

c=
$\pi \times diameter = (22 \div 7)28 = 88$

Answer 2

Circumference = πD

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Given that diameter = 28 cm

Circumference = π (28) = 28π = 87.96 cm (Nearest hundredth)

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Answer: 87.96 cm