mary2971
18.10.2020 •
Mathematics
The distance around a circular running track is 200m. Calculate the radius of the track, giving your answer to the nearest metre.
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Ответ:
The radius of the track is 32 meters
Step-by-step explanation:
Circumference
The circumference of a circle can be defined as the distance around the circle or the length of a circuit along the circle.
Given a circle of radius r, the circumference of the circle can be calculated as follows:
If we already know the length of the circle, we can solve the above expression for r:
The distance given around a circular running track is L=200 m, thus:
Rounding to the nearest meter:
r= 32 meters
The radius of the track is 32 meters
Ответ:
about 50 cars
step-by-step explanation: just add all the numbers