The sum of the interior angles of a dodecagon (not duo-decagon) is
(12 - 2)*180 = 1800 degrees.
The interior angles add up to 900 degrees Exterior angles total 360 degrees.
The exterior angles of a heptagon add to 360 degrees The interior angles add to 900 degrees.
A cube is made up of 6 sides. Each side has 4 angles,for a total of 24 angles. Since these angles are 90 degree angles, that would mean that there are 2,160 degrees in a cube.
A trapezoid is a quadrilateral and like all quadrilaterals it will have a total sum of 360 degrees of interior angles.
if it is a polygon then the total interior angles will equal 1080. so ear angle will be 135 degrees.
The interior angles sum to 360 degrees; the exterior angles also sum to 360 degrees.
A hexagon has 6 angles, with a total of 720 degrees.
The internal angles of a triangle can be added together to make 180 degrees in total.
A trapezoid is a quadrilateral and like all quadrilaterals it will have a total sum of 360 degrees of interior angles.
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180 Always. (on a flat surface).
All angles of a triangle total to 180 degrees.
It has 4 sides and 4 angles There are four interior angles. Each equaling 90 degrees for a total of 360 degrees in all of the angles combined. In fact, quadrangle is another name for rectangle.
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A square has 4 right angles. Right angles are 90 degree angles.4*90 degrees = 360 degrees
All triangles have a total of 180 degrees.The internal angles of any triangle add up to 180 degrees.Therefore, a RIGHT triangle's angle's added together equal 180 degrees.The Right Angle = 90 degrees + the other 2 angles total 90 degrees, making the total number of degrees in a Right Angle Triangle = 180 degrees.
A twenty-sided polygon is called an "icosagon." If it is a regular icosagon - all its sides and angles are equal - then it's interior angles are all 162 degrees. You can verify this by drawing a line to the center from each angle.. There will be 20 small angles arranged in a circle around the center. These must total 360 degrees. As 360 / 20 = 18, this leaves the other angles of each triangle to add up to 162, because the interior angles of a triangle total 180 degrees.