Question

PLZZZ HELPPPP ILL MARK BRAINLIEST TO FIRST AND CORRECT ANSWER THAT HAS WORK AND A THX TO SECOND AND CORRECT ANSWER.

Answer 1

Answer:

decagon has total 1440° interior angles.

Explanation:

using the formula to find total interior angle: ( n -2 ) * 180

                                                    where n is the number of sides

Here given the number of sides is 10

using the formula:

 ( 10 - 2 ) * 180

  1440°