Interior Angles Of A Decagon

The area of a regular decagon of side length a is given by.

Interior angles of a decagon. Since 1440 10 144 each interior angle in a regular decagon has a measure of 144. A regular decagon has equal interior angle measures. Each angle measures 144 144 and they all add up to 1 440 1 440.

A regular decagon is a decagon with all sides equal in length and all the angles equal in measure. The sum of the interior angles of a decagon is 10 2 180 1440 in a regular decagon all the angles are congruent at 1440 10 144. A decagon has 10 sides and 10 angles.

Each interior angle of a decagon is 144 degrees an exterior angle is 180 measure of interior angle there exterior angle of decagon is 180 144which is equal to 36. Make sure each triangle here adds up to 180 and check that the pentagon s interior angles add up to 540 the interior angles of a pentagon add up to 540 the general rule. An irregular decagon has sides and angles that are not all equal or congruent.

Also each exterior angle has a measure of 36. So the sum of the interior angles of a decagon is 1440 degrees. 144 like any regular polygon to find the interior angle we use the formula 180n 360 n.

A regular decagon has all sides of equal length and each internal angle will always be equal to 144. In a regular decagon the interior angles add up to 1440 circ and the exterior angles add up to 360 circ the sides and angles in a regular decagon are congruent. A decagon is a 10 sided polygon with 10 interior angles and 10 vertices which is where the sides meet.

Its interior angles add up to 3 180 540 and when it is regular all angles the same then each angle is 540 5 108 exercise. See interior angles of a polygon. A regular decagon has 10 equal length sides and equal measure interior angles.