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The area of a square field is 4 hectare. How much time will a man take to run around the field at the speed of 6 km/h |
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Answer» ong>Answer: Given are of square FIELD = 8 hectars =8×0.01 (1 hectare = 0.01km 2 ) =0.08km 2
Now AREA of square field = (side of square) 2
0.08=side 2
side = 0.08
side 100 8
= 10 2 2
= 5 2
Distance covered by man along the diagonal of square field = length of diagonal = 2
side= 2
× 5 2
= 5 2
km Speed of walking = 4 km/h ∴ Time taken = speed distance
= 5×4 2
= 20 2
= 10 1
=0.1hr |
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