A rhombus has a perimeter of $68$ units and one of its diagonals is $30$ units. What is its area in square units?
Question:
A rhombus has a perimeter of $68$ units and one of its diagonals is $30$ units. What is its area in square units?
Answer:
Let's think step by step.

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A rhombus has a perimeter of $68$ units and one of its diagonals is $30$ units. What is its area in square units?
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