Question

If the circumference of a circular sheet is 154 cm find its diameter

Answer 1

$circumference = 2\pi \times r \\ 154 = 2 \times \frac{22}{7} \times r \\ r = \frac{154 \times 7}{2 \times 22} \\ r = 24.5 \\ d = 2r \\ = 2 \times 24.5 \\ = 49$

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Answer 2

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