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How many acute angles in a decagon?
A decagon is a polygon with 10 sides. In a decagon, each interior angle measures 144 degrees. An acute angle is an angle that measures less than 90 degrees. Since all the interior angles of a decagon are 144 degrees, there are no acute angles in a decagon.
What is a ten sided geometrical figure called?
A decagon - if the sides are all equal, and the angles are all equal, it is a regular decagon.
What is the size of an exterior angle of decagon?
An exterior angle of a decagon can have any value in the range (0, 360) degrees - excluding 180 degrees. The only constraint is that the sum of all exterior angles must be 360 degrees.
What is the measure of an exterior angle of a twelve sided polygon?
If the 12-sided polygon is 'regular', then each of its exterior angles is 30 degrees. Whether the polygon is regular or not, all 12 of its exterior angles still add up to 360 degrees, but they may not all be equal.
What is the SUM of ALL of the interior angles of a decagon?
The 10 interior angles of a decagon add up to 1440 degrees
