Question

What is the area of the triangle, given each square on the grid represents $1$ unit${}^2$?

• A. $12$ sq. units
• B. $16$ sq. units
• C. $20$ sq. units
• D. $24$ sq. units

Answer 1

The correct option is B $16$ sq. units


From the figure, we can see that:
Base has a length of $8$ units,
Height has a lenght of $=4$ units.
Using the formula for the area of a triangle, i.e.
$\text{Area}=\frac{1}{2}\times \text{base}\times \text{height}$
$\text{Area}=\frac{1}{2}\times 8\times 4=16\text{sq. units}$