Problem 135 of 7
Diagnose the coordinate measurement error in A histogram-like polygon area calculation subtracts a rectangle that is actually inside the shape.
Using a hint is okay. It just tells the trainer to give you a little more review.
Hidden until you reveal it.
catch distance formula, base-height, or vertex-order mistakes.
Hidden until you reveal it.
Worked example must contain a measurement formula, decomposition, or sign error.
Enter your answer
Your answer is equivalent to the expected form.
Walkthrough
Full solution stays hidden until you ask for it.
1. Identify which measurement is being computed.
2. Check the formula and arithmetic.
3. State the specific error and corrected result or method.
Use the worked steps, then substitute the final answer back into the original relationship to confirm it satisfies the prompt.
Saying arithmetic is wrong without naming the formula issue.