hallar el área del triángulo rectángulo. 1 unidad área = unidades cuadradas

Explanation:

Step1: Identify base and height

By counting grid - squares, base $b = 3$ units and height $h=6$ units.

Step2: Apply area formula

The area formula for a right - triangle is $A=\frac{1}{2}bh$. Substitute $b = 3$ and $h = 6$ into the formula: $A=\frac{1}{2}\times3\times6$.

Step3: Calculate the area

$A=\frac{1}{2}\times18 = 9$ square units.

Answer:

9