Question

In the calculation of the area of a rectangle with dimensions of 4.282 m by 0.050 m, which of the following answers has the correct number of significant figures?

Answer 1

We have

$A=l\times w$

in our case

l=4.282 m

w=0.050m

we substitute

$A=(4.282)(0.050)=0.2141m^2=0.21m^2$

ANSWER

0.21m^2