Determine the perimeter of the rectangle ABCD:
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Determine the perimeter of the rectangle ABCD:
Based on the given data, we know that:
We are missing data to determine the length of AB, and therefore we cannot calculate the perimeter of the rectangle
It is not possible to know
Look at the rectangle below.
Side DC has a length of 1.5 cm and side AD has a length of 9.5 cm.
What is the perimeter of the rectangle?
These numbers represent different segments, not the rectangle's sides! We have AD = 5 (one side), AE = 7 (part of AB), and FC = 1 (another partial segment). We need the complete lengths of all four sides.
Point E divides side AB into two parts: AE and EB. So AB = AE + EB = 7 + EB. Since we don't know EB's length, we can't find AB's total length.
For a rectangle's perimeter, you need both the length and width. If any measurement is incomplete or represents only part of a side, you cannot calculate the perimeter.
No! These would require assuming unknown lengths. For example, 25 assumes AB = 10, but we have no evidence for this. Never guess missing information in geometry problems.
Always choose 'It is not possible to know' when you cannot determine all required measurements. This shows you understand what information is actually needed for the calculation.
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