Wiki User
∙ 14y agoThey don't. The interior angles of a triangle add up to 180°. The complements of each of these angles adds up to 360°. So 3 times 360 minus 180 = 900. This is your answer.
Wiki User
∙ 14y agoThe exterior sum of the angles of any polygon including a triangle is always 360 degrees.
The interior angles of a triangle add up to 180 degrees. The exterior angles of a triangle add up to 360 degrees.
A triangle has 3 interior angles that add up to 180 degrees and 3 exterior angles that add up to 360 degrees
Exterior angle of any plane figure total 360 degrees, so 360 - (110 + 100) ie 360 - 210 = 150
The Interior angles of a triangle add up to 180° The Exterior angles of a triangle (or any other polygon) add up to 360°.
The exterior sum of the angles of any polygon including a triangle is always 360 degrees.
The sum of the exterior angles of a triangle is always 360 degrees. Therefore, each exterior angle of a triangle measures 120 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.
360 degrees
The exterior angles of a triangle add up to 360 degrees.
The interior angles of a triangle add up to 180 degrees. The exterior angles of a triangle add up to 360 degrees.
The exterior angles of a triangle add up to 360 degrees.
Their exterior angles add up to 360 degrees
The exterior angles of a triangle add up to 360 degrees.
An isosceles triangle has interior angles of 180 degrees and exterior angles of 360 degrees
Interior angles add up to 180 degrees Exterior angles add up to 360 degrees
The 3 exterior angles of any triangle add up to 360 degrees and the 3 interior angles add up to 180 degrees.