# If the perimeter of a rhombus is 4a and the lengths of the diagonals are x and y, then its area is

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If the perimeter of a rhombus is 4a and the lengths of the diagonals are x and y, then its area is

(a) a(x + y)

(b) x2 + y2

(c) xy

(d) $\frac12$xy

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(d) $\frac12$xy

Area = $\frac12$ × Product of diagonals = $\frac12$xy