Question

Qual a soma dos ângulos internos de um hexadecágono? 

a 2500

b 2780

c 2670

d 2520

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Answer 1

$\sf S_i=(n-2)\cdot180\textdegree$

$\sf S_i=(16-2)\cdot180\textdegree$

$\sf S_i=14\cdot180\textdegree$

$\boxed{\boxed{\sf S_i=2520\textdegree}}}$