Question

The sides of a rectangle are $7.01m$ and $12m$. Taking the significant figures into account, the area of the rectangle is

• A. $84.1m^2$
• B. $84.00m^2$
• C. $84.12m^2$
• D. $84m^2$

Answer 1

The correct option is D $84m^2$

Given,
side of rectangle are $7.01m$ and $12m$.
Area of rectangle $=Length\times Breadth$
$=7.01\times 12=84.12m^2$
Rounded of two significant figures.
Area of rectangle $=84m^2$.