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The length and breadth of a rectangle are 4.5 mm and 5.9 mm. Keeping the number of significant figures in mind, its area in mm^2 is ____

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The length and breadth of a rectangle are 4.5 mm and 5.9 mm. Keeping the number of significant figures in mind, its area in mm^2 is ____

(a) 22.55

(b) 26.55

(c) 26.6

(d) 22

This question was addressed to me during an interview.

My doubt stems from Significant Figures in portion Units and Measurements of Physics – Class 11

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Right choice is (b) 26.55

Explanation: Area of rectangle is length multiplied by breadth. The area of this rectangle is 4.5×5.9 mm^2 = 26.55 mm^2.

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