find the circumference of a circle radius 5 cm, Circle, Mathematics (O-Level)

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Question:Find the circumference of a circle of radius  5 cm.

Answer C = 2`pi` r=2`pi xx`5 cm=10`pi`cm
                                        =31.42 cm
                                        =31.4 cm  (to 3 sig. fig)

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Find the circumference of a circle of radius 5 cm.

Question:Find the circumference of a circle of radius 5 cm.

Answer C = 2`pi` r=2`pi xx`5 cm=10`pi`cm =31.42 cm =31.4 cm (to 3 sig. fig)