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2 answers:
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Total weight of the steel gate = 150 kg
Solution:
Length = 12 m
Breadth = 5 m
Using Pythagoras theorem,
Diagonal =
Diagonal = 13 m
Total length of the gate = 5 + 5 + 12 + 12 + 13 + 13
Total length of the gate = 60 m
Weight of the steel per meter = 2.5 kg
Weight of the steel for 60 m = 60 × 2.5
= 150 kg
Total weight of the steel gate = 150 kg