Find the area of a rhombus whose diagonals are 103 cm and 104 cm. (in cm²)
5356
5356 is correct.
A rhombus has four equal sides, and its two diagonals split it into four congruent right triangles.
The diagonals of a rhombus bisect each other at right angles, so its area \(=\dfrac{1}{2}\times d_1\times d_2\).
\(\dfrac{1}{2}\times 103\times 104=103\times 52=5356\) cm².
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The width of the rectangle is 230 cm and its diagonal is 598 cm. Find its perimeter (in cm).
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