Question

Find the circumference of a circle with diameter, d = 4.7m. Give your answer rounded to 2 DP.

Answer 1

Step-by-step explanation:

we can answer this by using the formula for circumference of a circle, i.e, 2πr or πd

where r = radius and d = diameter.

therefore, circumference will be

πd because d is given as 4.7 m.

we can use either values for π, 22/7 or 3.14, because it's not mentioned in the question which one we have to use.

we get 14.77....m by using 22/7 and 14.758m by using 3.14.

now, considering 14.758m, because it is a rational number, we get 14.76m when we round it off to two decimal places.

therefore the required answer is 14.76m.