UPSC NDA I 2010 Mathematics Paper
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Question : 87 of 120
Marks:
+1,
-0
What is the geometric interpretation of the identity (
−
) × (
+
) = 2 (
×
) ?
I. If the diagonals of a given parallelogram are used as sides of a second parallelogram, then the area of the second parallelogram is twice that of the given parallelogram.
II. If the semi-diagonals of a given parallelogram are used as sides of a second parallelogram, then the area of the second parallelogram is half that of the given parallelogram.
Select the correct answer using the code given below:
I. If the diagonals of a given parallelogram are used as sides of a second parallelogram, then the area of the second parallelogram is twice that of the given parallelogram.
II. If the semi-diagonals of a given parallelogram are used as sides of a second parallelogram, then the area of the second parallelogram is half that of the given parallelogram.
Select the correct answer using the code given below:
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