Question

Calculate the estimated and measured area of the given figure and hence, find the difference by comparing both the areas. (Each small square measures area $1$ unit square)

• A. $11$ sq. units
• B. $11.5$ sq. units
• C. $0.5$ sq. units
• D. $1$ sq. units

Answer 1

The correct option is C $0.5$ sq. units

Estimated area of figure$=11$ sq. units

Measured area$=(4\times 4)-\frac{1}{2}(2+1)\times 1-\frac{1}{2}\times 2\times 3$

$=16-\frac{3}{2}-3\Rightarrow \frac{32-3-6}{2}-\frac{23}{2}=11.5$

Difference in area$=11.5-11=0.5$