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Help me: A circle has a diameter of 140 cm. Work out the circumference of the circle. Give your answer correct to 3 significant figures.

Help me: A circle has a diameter of 140 cm. Work out the circumference of the circle. Give your answer correct to 3 significant figures.
asked 11.0k views
3 votes
Help me: A circle has a diameter of 140 cm.

Work out the circumference of the circle.
Give your answer correct to 3 significant figures.

asked
User Woogie
by
8.1k points

2 Answers

0 votes
Circumference =diameter * pi number

140*3.14= 439.6
answered
User Myl
by
8.3k points
5 votes

Answer:

440cm (to 3 s.f.)

Explanation:

circumference= πd

= π×140

= 440cm (to 3 s.f.)

answered
User Mojones
by
8.2k points
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