Question

somas dos angulos internos de um quadrilatero

Answer 1

A SOMA DOS ÂNGULOS INTERNOS DE UM QUADRILÁTERO É = 360° 

Answer 2

$\large\boxed{\begin{array}{l} \underline{ \boldsymbol{f\acute{o}rmula}} \\\huge\boxed{\boxed{\boxed{\boxed{\rm{ \tt S_i = (n - 2) \cdot180 {}^{ \circ} }}}}} \\ \\ \sf S_i = (4 - 2) \cdot180 {}^{ \circ} = 2 \cdot180 {}^{ \circ} = 360 {}^{ \circ}\end{array}}$