SOLUTION: the area of a square field is 60025 square metres. a man cycles along its boundary at the speed of 18 km/hr , in how much time will he return to the starting point

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Question 623634: the area of a square field is 60025 square metres. a man cycles along its boundary at the speed of 18 km/hr , in how much time will he return to the starting point
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
One side +s+, of the square field is
+s%5E2+=+60025+
+s+=+sqrt%28+60025+%29+
+s+=+245+
Perimeter = +4s+
+4s+=+4%2A245+
+4%2A245+=+980+
+980%2F18000++=+.05444+
+.05444%2A60+=+3.267+
+.267%2A60+=+16+
He returns to starting point in 3 min 16 sec