Question

Determine the area of right angle traingle of a given image.

• A. $1{\text{unit}}^2$
• B. $1\text{unit}$
• C. $\frac{1}{2}{\text{unit}}^2$
• D. $5{\text{unit}}^2$

Answer 1

The correct option is A $1{\text{unit}}^2$

Let name the vertices of a triangle

In a $△ABC$, right angled at $B$.
As we know,
Area of a right triangle $=\frac{1}{2}\times \text{base}\times \text{height}$.

In the given diagram $AC$ is the hypotenuse.
So, if we consider $BC$ as bases,
$\Rightarrow AB$ is the height.
$\therefore$ Area $\Delta ABC=\frac{1}{2}\times 2\times 1=1{\text{unit}}^2$

Option (a) is correct.