question_answer

What is the area of the largest triangle that can be inscribed in a semicircle whose radius is 'r' cm?

A)  \[\text{2r}\,\text{c}{{\text{m}}^{\text{2}}}\]                                    

B)  \[{{\text{r}}^{\text{2}}}\text{ c}{{\text{m}}^{\text{2}}}\]

C)  \[\text{2}{{\text{r}}^{\text{2}}}\text{ c}{{\text{m}}^{\text{2}}}\]            

D)         \[\frac{r}{2}\text{c}{{\text{m}}^{\text{2}}}\]