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This question could be argued over and over. However, my interpretation of "supplementary" is TWO angles add up to be 180. However, there are THREE angles in a triangle, so the angles of a triangle, although they add up to 180, are not supplementary.

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2008-10-30 03:02:32
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Q: Are the angles of a triangle considered to be supplementary?
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Related questions

What is the term for the sum of angles of the triangle?

supplementary angles.

Are acute angles of a right triangle are supplementary?

No, they are complimentary (add to 90°) Supplementary means the two angles add to 180°

Two adjacent supplementary angles are called?

Two adjacent angles are considered supplementary angles. They aggregate and make an angle that measures 180 degrees.

Is An interior angle of a triangle and one of its adjacent exterior angles supplementary?


Is a triangle supplementary or complementary?

In a right angled triangle, the two non-right angles are complementary, because in a triangle the three angles add to 180°, and 90° has already been taken by the right angle. When two angles add to 90°, we say they "Complement" each other.

Are the two acute angles in a right triangle supplementary?

No, they are complementary angles. Supplementary angles sum to 180o Complementary angles sum to 90o. The three angles of a triangle sum to 180o. If one is 90o (the right angle), then the other two sum to 180o - 90o = 90o and so are complementary.

Is it possible to draw a triangle with a pair of supplementary angles?

No, because the sum of the 3 angles of a triangle always equals 180 degrees. If two angles are supplementary by definition the two together already sum to 180 degrees, leaving no "space" for the third angle.

How many supplementary angle are in triangle?

The 3 interior angles of any triangle add up to 180 degrees.

What is the Sum of an exterior angle of a triangle and its adjacent interior angle is called?

They are called supplementary angles.

Is it true that Opposite angles of a trapezoid are supplementary?

Wouldn't think so, think of a trapezium shaped like a square with a triangle on one side... The angles at one end of the figure are both 90o, and the angles at the other end will be supplementary, but not opposite angles.

Does a rhombus have opposite angles that are supplementary?

No. The adjacent angles are supplementary.

Are supplementary angles necessarily a linear pair?

No. All linear pair angles are supplementary, but supplementary angles do not have to be a linear pair.

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