The triangle has three exterior angles. Added together, their total is 180 degrees.
(Same as the total of the three interior angles when they're added together.)
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Interior angle+exterior angle = 180 degrees
The 3 exterior angles of any triangle add up to 360 degrees and the 3 interior angles add up to 180 degrees.
-- A scalene triangle has three interior angles and three exterior angles. -- The sum of the interior angles is 180 degrees, and no two of them are equal. -- The sum of the exterior angles is also 180 degrees, and no two of them are equal. -- The sum of each interior angle and its adjacent exterior angle is 180 degrees.
Actually, no. The sum of the exterior angles of a triangle is 360 degrees. The sum of the interior angles of a triangle is 180 degrees.
With a protractor remembering that interior angle and exterior angle add up to 180 degrees because angles on a straight line add up to 180 degrees. The 3 interior angles of any triangle add up to 180 degrees and their 3 exterior angles add up to 360 degrees.
Exterior angle+interior angle=180 degrees and 180-exterior angle=interior angle
Interior angle+exterior angle = 180 degrees
An exterior angle of a triangle can have a value between (but not including) 0 to 180 degrees.
The 3 exterior angles of any triangle add up to 360 degrees and the 3 interior angles add up to 180 degrees.
In any triangle exterior angle plus interior angles = 180 degrees
a triangle has 180 degree but each exterior has 90 degree .
No.Take a look at this picture...http://www.onemathematicalcat.org/Math/Geometry_obj/graphics/summing_exterior_angles.pngThe exterior angle + the interior angle = 180 degrees180 - the interior angle = the exterior angle
It is: 180-interior angle = exterior angle
It is: 180-interior angle = exterior angle
-- A scalene triangle has three interior angles and three exterior angles. -- The sum of the interior angles is 180 degrees, and no two of them are equal. -- The sum of the exterior angles is also 180 degrees, and no two of them are equal. -- The sum of each interior angle and its adjacent exterior angle is 180 degrees.
Actually, no. The sum of the exterior angles of a triangle is 360 degrees. The sum of the interior angles of a triangle is 180 degrees.
The sum of the interior angles of any triangle is 180 degrees.