Question

Can you help me with 50. And edit any problems you think I got wrong

Answer 1

48)

`\bf \textit{area of a triangle}\\\\ A=\cfrac{1}{2}bh~~ \begin{cases} b=base\\ h=height\\[-0.5em] \hrulefill\\ b=16\\ h=14 \end{cases}\implies A=\cfrac{1}{2}(16)(14)\implies A=112`

50)

`\bf \textit{area of a circle}\\\\ A=\pi r^2~\hspace{7em}\stackrel{r=7}{A=\pi 7^2}\implies A=49\pi \implies A\approx 153.94`