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A supplementary angle adds up to 90 degrees as a complementary adds up to 180 degrees
An angle that adds up to 90 degrees is a complementary angle. It consists of two acute angles.
what type of triangle that adds up to 180 degrees * * * * * ALL 2-d triangles have angles that add up to 180 degrees.
two congruent angles that adds up to 180
There is a formula for the total of the interior angles. A triangle (3 sides) adds up to 180°. A quadrilateral adds up to 360°. A pentagon adds up to 540° and a hexagon adds up to 720°. Notice that for each additional side, the sum of the interior angles increases by 180°. The general formula for an 'n' sided polygon is: (n-2) * 180° So (6-2) * 180° = 4 * 180° = 720° (like I said before)