Answer:
decagon has total 1440° interior angles.
Explanation:
using the formula to find total interior angle: ( n -2 ) * 180
<em>where n is the number of sides</em>
<em>Here given the number of sides is 10</em>
<em>using the formula:</em>
( 10 - 2 ) * 180
1440°
Equal too 4 wholes that is my answer
