1.

Find the area of a rhombus whose perimeter and one of its diagonal are 68 cm and 30 cm respectively.

A. \[220c{{m}^{2}}\]
B. \[260c{{m}^{2}}\]
C. \[240c{{m}^{2}}\]
D. \[280c{{m}^{2}}\]
E. None of these
Answer» D. \[280c{{m}^{2}}\]


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