Problem 39 of 7
Explain the parallelogram area formula by dissection for an oblique parallelogram.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
rearrange to rectangle.
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Explanation must rearrange the parallelogram to a rectangle with the same base and perpendicular height.
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Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify the base and perpendicular height.
2. Describe cutting and moving a triangular side piece.
3. Conclude the equivalent rectangle has area base times height.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Multiplying base by slanted side unless it is perpendicular.