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प्रश्न
Calculate the distance between the points P (2, 2) and Q (5, 4) correct to three significant figures.
उत्तर
PQ = `sqrt((5 -2)^2 + (4 - 2)^2)`
= `sqrt(9 + 4)`
= `sqrt(13)`
= 3.6055
= 3.61 units
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