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*A rectangular ground is 80 m long and 60 m wide. How much long wire will be needed for four-layers of fencing ?*1️⃣ 560 m2️⃣ 1400 m3️⃣ 700 m4️⃣ 1120 m |
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Answer» Explanation: Let four posts be there at the CORNER A,B,C,D of the RECTANGULAR FIELD. Then, along the length AB, we have 7 posts and along the breadth BC, we have 5 posts. Total number of posts =2(7+5)+4=28. solution |
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