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Question

O is any point inside a rectangle ABCD. then OB2+OD2=OC2+OA2
If the above statement is true then mention answer as 1, else mention 0 if false

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Solution

Given, ABCD is a rectangle. O is any point inside the rectangle.
Construction: Construct perpendiculars OP, OQ, OR, OS on each side.
Now, OA2+OC2=(AS2+OS2)+(OQ2+QC2) (Considering right triangles ASO and COQ)
But AS=BQ and QC=SD, Therefore,
OA2+OC2=(BQ2+OS2)+(OQ2+SD2)
OA2+OC2=(BQ2+OQ2)+(OS2+SD2)
OA2+OC2=OB2+OD2 (Considering right triangles OSD and OBQ)
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