Question

Calcule a área dos triângulos-retângulos abaixo;

Answer 1

A=b.h/2 = 12.5/2=60/2=30m²

A=b.h/2 = 3.8/2=24/2= 12cm²

Answer 2

fórmula:

$\Large\boxed{\begin{array}{l} \Large\boxed{\begin{array}{l} \sf{A = \dfrac{B \: . \: h}{2}}\rightarrow \begin{cases} \sf \: A= \acute{a}rea \\ \sf \: B= base \\ \sf \: h= altura \end{cases}\end{array}}\end{array}}$

Cálculos:

$\Large\boxed{\begin{array}{l} \Large\boxed{\begin{array}{l} \sf \: A = \dfrac{12 \: . \: 5}{2} \\ \\ \sf \: A = \dfrac{60}{2} \\ \\ \boxed{ \boxed{ \boxed{ \boxed{ \sf{A = 30 \: m {}^{2} } }}}} \checkmark\end{array}}\end{array}}$

$\Large\boxed{\begin{array}{l} \Large\boxed{\begin{array}{l} \sf \:A = \dfrac{3 \: . \: 8}{2} \\ \\ \sf \: A = \dfrac{24}{2} \\ \\ \boxed{ \boxed{ \boxed{ \boxed{ \sf{A = 12 \: cm {}^{2} }}}}} \checkmark\end{array}}\end{array}}$