The angles of any triangle add to 180 degrees. Whether or not the triangle is in a decagon is totally irrelevant.
There are 1440 degrees in a decagon.
216.
Each triangle has 180 degrees on the inside angles.
144 degrees. from the triangle (180 degrees) to find the degrees of shapes with one more side, add 180 degrees. e.g. triangle (3 sides) - 180 degrees quadrilateral (4 sides) - 180 + 180 = 360 degrees
60 degrees in each angle
Each interior angle of a regular decagon would measure 144 degrees,
There are 1440 degrees in a decagon.
A decagon has 7 more sides than a triangle. A triangle has 3 and a decagon has 10.
216.
Each triangle has 180 degrees on the inside angles.
Each of the 3 angles measures 60 degrees. There are 180 degrees in a triangle.
144 degrees. from the triangle (180 degrees) to find the degrees of shapes with one more side, add 180 degrees. e.g. triangle (3 sides) - 180 degrees quadrilateral (4 sides) - 180 + 180 = 360 degrees
A regular 10 sided decagon has 10 exterior acute angles each measuring 36 degrees It has no interior acute angles because each interior angle measure 144 degrees
60 degrees in each angle
1440 degrees
1440
180 Degrees.In an equilateral triangle, each angle and side is 60 degrees.there is 180 degrees in every triangle