Question

An irregular solid, when placed on a centimetre graph paper and outline is drawn, covers 12 complete square and 8 incomplete squares. What is the approximate area bounded by the outline?

• A. $16m^2$
• B. $15m^2$
• C. $16c{m}^2$
• D. $15c{m}^2$

Answer 1

The correct option is C

$16c{m}^2$

For irregular shapes:

Area = Number of complete square + $\frac{1}{2}\times numberofincompletesquares$

Area = 12 + $\frac{1}{2}\times 8=16c{m}^2$