What is the sum of the measures of the angles of a regular decagon? What is the measure of each angle in the decagon?
1,620°; 162°
2,880°; 288°
1,440°; 144°
none of these
4 answers
https://www.google.com/search?source=hp&ei=T9CBWqmnI4amjwT_zbvoAg&q=decagon&oq=decagon&gs_l=psy-ab.3..0l2j0i20i264k1j0l4j0i20i264k1j0l2.10926.14254.0.15556.8.7.0.0.0.0.171.879.2j5.7.0..2..0...1.1.64.psy-ab..1.7.878.0..46j35i39k1j0i131k1j0i46k1j0i131i20i264k1.0.A85bpMX4JFQ
it is free
the sum of the EXTERIOR angles of a polygon is 360º
decagon has 10 sides (and angles)
each exterior angle is ... 360º /10
each interior angle is ... 180º - (360º /10)
the sum of the EXTERIOR angles of a polygon is 360º
decagon has 10 sides (and angles)
each exterior angle is ... 360º /10
each interior angle is ... 180º - (360º /10)
Ma.Sue can u help me plz
For a polygon of n sides, the sum of the interior angles is
180(n-2)
180(n-2)