The length of a Diagonal of a square is 12 cm long.find its area and perimeter
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ganit2012:
Thnx..area is correct but perimeter is 33.936cm
Sorry..its absolutely correct
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area of square= 1/2 diagonal × diagonal
=1/2 × 12cm×12cm
=1/2×144cm sq.
=72cm sq.
perimeter = 4× side
area =side ×side
72cm sq. = side sq.
perimeter =4×6
=1/2 × 12cm×12cm
=1/2×144cm sq.
=72cm sq.
perimeter = 4× side
area =side ×side
72cm sq. = side sq.
perimeter =4×6
Thnx..I think it's 4×6√2= 24√2
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