Answers

2016-02-11T01:27:24+05:30
Find = circumference in km
circumference=22/7*d
                     =22/7*280m
                       =880m
                       =0.88 km
1 5 1
2016-02-11T06:44:02+05:30
To find the circumference of this circle whose radius is 280 we can use formula 22d/7 or 2×22/7×r
therefore 22/7×280=880m
he covers 880 km in 1 round, so in 10 rounds he will cover 10×880=8800m and
to convert this distance into km=8800/1000
8.800km
0