find the area of a rhombus ABCD whose perimeter is 20cm and length of AC =8cm
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Perimeter of the rhombus = 20.
Each side of the rhombus = 20/4 = 5.
Length of one diagonal of the rhombus = 8.
Half the length of the diagonal of the rhombus = 4.
Half the length of the second diagonal of the rhombus = {5²–4²]¹/² = 3.
Length of the second diagonal of the rhombus = 6.
Area of the rhombus = 8*6/2 = 24 sq units.
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