Question

qual é a medida aproximada dos angulos internos de um heptagono regular?

Answer 1

$\large\displaystyle\boxed{\begin{array}{l} \sf \: A_i = \dfrac{(n - 2) \cdot180 {}^{ \circ} }{n} \\ \\ \sf \:A_i = \dfrac{(7 - 2) \cdot180 {}^{ \circ} }{7} \\ \\ \sf \: A_i = \dfrac{5 \cdot180 {}^{ \circ} }{7} \\ \\ \sf \: A_i = \dfrac{900 {}^{ \circ} }{7} \\ \\ \boxed{ \boxed{ \sf{A_i\approx 128,57 {}^{ \circ} }}} \end{array}}$