Question

3. Determine a área da região hachurada na figura
a seguir.

Answer 1

$\Large\boxed{\begin{array}{l}\sf A_{hachurada}=A_{ret\hat angulo}-A_{trap\acute ezio}-A_{tri\hat angulo}\\\sf A_{hachurada}=210\cdot95-\dfrac{(80+38)\cdot70}{2}-\dfrac{28\cdot15}{2}\\\sf A_{hachurada}=19950-4130-210\\\sf A_{hachurada}=15610~m^2\end{array}}$