Question

A student found that the dimensions of a rectangle were 1.20 cm and 1.40 cm he was asked to report the area using the correct number of significant digits he reported the area as 1.7 cm² explain the error the student made

Answer 1

Area of a rectangle is l x w
the student multiplied 1.2 x 1.4= 1.68 cm^2
the student should have NOT rounded the answer,
the problem said use significant digits

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