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7.The area of a rectangular field is 3400 m2 and its length is 68 m. Find(i) its breadthă the distance covered by a man in going 5 times around the field. |
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Answer» Area of a rectangular field is equal to length into breadth. Area =lb 3400=68×b b= 50 m.So the breadth of field is 50 m. For travelling one time completely around the field, distance covered= Perimeterdistance covered in one round =2(l+b) =2(68+50) = 2(118) = 236m So in 5 rounds he travels 236×5 =1180 m. |
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