Question

Carla desenhou um polígono regular de 9 lados.

• Qual é a soma dos ângulos internos do Eneágono regular?​

Answer 1

Explicação passo-a-passo:

$\sf S_i=(n-2)\cdot180^{\circ}$

$\sf S_i=(9-2)\cdot180^{\circ}$

$\sf S_i=7\cdot180^{\circ}$

$\sf S_i=1260^{\circ}$

Answer 2

$\large\displaystyle\boxed{\begin{array}{l}\sf{\displaystyle{\sf{S_i = (n - 2)\cdot180 {}^{ \circ} }}} \\ \\ \sf{S_i = (9 - 2) \cdot180 {}^{ \circ} } \\ \\ \sf{S_i = 7 \cdot180 {}^{ \circ} } \\ \\ \boxed{ \boxed{ \sf{S_i = 1260 {}^{ \circ} }}}\end{array}}$