Question

Find the area of the right-angled triangle given in the figure below.

• A. 6$c{m}^2$
• B. 12$c{m}^2$
• C. 15$c{m}^2$
• D. 20$c{m}^2$

Answer 1

The correct option is A 6$c{m}^2$

$\text{Area of a triangle}=\frac{1}{2}\times \text{base}\times \text{height}$
$\therefore \text{Area of a triangle ABC}=\frac{1}{2}\times BC\times AB$
=$\frac{1}{2}\times 3\times 4$
=$6c{m}^2$