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Pairs of Angles
1.Complementary Angles
-are two angles together complete a right angle.
*The two angles need not be to be adjacent.
-to find the complement angle subtract the given angle from 90°.
Ex: Give the complement of 65°.
1. 90°-65° =25° (25+ 65=90)
2. 90°-70° =20° (20+ 70=90)
2.Supplementary Angles
-are two angles whose measurements are equal to 180°.
*The angles not also be adjacent.
-To find the supplement angle, subtract the given angle from 180°.
Ex:
1. Give the supplement of 130°.
180°-130°=50°
3.Adjacent Angles
-two angles with a common side and the same vertex.
4.Vertical angles
-are opposite angles formed two intersecting lines.
They have a common vertex but no common side.
What else can I help you with?
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.
What angles do a rhombus have?
A rhombus has a pair of opposite equal acute angles and a pair of opposite equal obtuse angles and the four angles add up to 360 degrees.
Can a pair of angles be supplementary and congruent?
No, a pair of angles that are supplementary will always have a sum of 180 degrees, while a pair of angles that are congruent will have the same measure. Therefore, it is not possible for a pair of angles to be both supplementary and congruent.
If two angles are a linear pair of angles then they are what?
These will be supplementary angles.
What kind of angles is formed by the rhombus?
One pair of equal acute angles and a pair of equal supplementary (obtuse) angles.
Can a pair of obtuse angles be vertical angles?
No
Either pair of base angles of an isosceles trapezoid forms a pair of congruent angles.?
always
Does either pair of base angles of an isosceles trapezoid form a pair of congruent angles?
Always : )
Either pair of base angles of an isosceles trapezoid forms a pair of congruent angles?
always.
Are vertical angles a linear pair?
No, vertical angles are not a linear pair. Vertical angles are formed when two lines intersect, creating pairs of opposite angles that are equal in measure. A linear pair consists of two adjacent angles that sum to 180 degrees and share a common side. While vertical angles may be supplementary to other angles, they are not adjacent and do not form a linear pair.
What is a pair if angles with the sum of 180?
They are supplementary angles.
What is a pair of angles that is 90 degrees?
Complementary angles.
