Question

Can someone help me please ?

Answer 1

9514 1404 393

Answer:

a) 720°

b) 98

Explanation:

a) The sum of interior angles of an n-gon is (n-2)×180°. For n=6, the sum is ...

(6 -2)×180° = 4×180° = 720°

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b) The sum of the marked angles is 622°, so the value of x is ...

x = 720 -622

x = 98