Because that is what a straight line (or straight angle) is.
If the angles are EACH 180 degrees and they are placed adjacent, then they forma complete revolution of 360 degrees.If the two angles add up to 180 degrees when they are placed adjacent, then they aresupplementary angles.
No. Complementary angles add up to 90 degrees. Supplementary angles add up to 180 degrees.
They are said to be supplementary angles that add up to 180 degrees
No, only in a square (regular parallelogram).The opposite angles are EQUAL in a parallelogram, and the adjacent angles are SUPPLEMENTARY(they equal 180 degrees).So if any angle in a parallelogram is a right angle, they all are. Otherwise, there are no right angles.The angles of a parallelogram will average 90 degrees, as there are 360 degrees in any quadrilateral, (360/4 - 90) and 180 degrees in two adjacent non-equal angles (180/2 = 90).
Are said to be supplementary.
180 degrees
If the angles are EACH 180 degrees and they are placed adjacent, then they forma complete revolution of 360 degrees.If the two angles add up to 180 degrees when they are placed adjacent, then they aresupplementary angles.
The adjacent Supplementary angles are the sum of 2 angles that make 180 degrees.
No, it equals 360. All interior angles for any quadrilateral are always 360. Usually adjacent angles add up to 180 degrees.
180 degrees.
Sum of adjacent angles on a straight line.
Two angles that sum to 180 degrees are called supplementary angles. This means that when the measures of the two angles are added together, they equal 180 degrees. Supplementary angles can be adjacent (forming a straight line) or non-adjacent.
180 Degrees
Supplementary adjacent angles add up to 180 degrees
When the sum of two adjacent angles is 180 degrees, they are referred to as supplementary angles. These angles share a common vertex and a side, lying next to each other. In geometric terms, if angle A and angle B are adjacent and their measures add up to 180 degrees, then A + B = 180°. This relationship is commonly observed in straight angles and many geometric figures.
they are called supplementary angles. a straight line has 180 degrees each side and two adjacent angles forming 180 degrees are called supplementary angles.
Two angles whose sum is 180 degrees are called supplementary angles. When two angles are supplementary, it means that the sum of their measures equals 180 degrees. This relationship is often used in geometry to solve for unknown angles or to identify complementary angles.