Triangles, Transversal, Triangle Congruence, Triangle Congruence - SSS, SAS, ASA, Triangle Congruence
SAS (pic)
1
If angle 2 is 38°, what is the measure of angle 8
142°
SSS (pic)
2
If angle 3 is 23°, what is the measure of angle 6
23°
If angle 7 is 25°, what is the measure of angle 6
25°
AAA (pic)
3
AAS (pic)
4
SSA (pic)
5
ASA (pic)
6
If angle 1 is 120°, what is the measure of angle 2
60°
If angle 5 is 110°, what is the measure of angle 2
70°
Segment Bisector
A line, ray, or segment that splits a segment into two congruent parts.
Midpoint
A point on a segment that divides the segment into two congruent parts.
Leg of a Right Triangle
A side adjacent to the right angle in a right triangle
SSS (text)
A theorem that says triangles are congruent if all three sides are congruent.
AAS (text)
A theorem that says triangles are congruent if two angles and a non-included side are congruent.
ASA (text)
A theorem that says triangles are congruent if two angles and the included side are congruent.
SAS (text)
A theorem that says triangles are congruent if two sides and the included angle are congruent.
AAA (text)
A theorem that says triangles are similar if all three sides are congruent.
Acute Triangle
A triangle which has 3 acute angles
Isosceles Triangle
A triangle with 2 or more congruent sides
Equiangular Triangle
A triangle with 3 congruent angles
Equilateral Triangle
A triangle with 3 congruent sides
Obtuse Triangle
A triangle with one obtuse angle
Right Triangle
A triangle with one right angle
Angle Angle Side
AAS
Exterior Angle of a Triangle
An angle that is part of a linear pair to an interior angle.
ASA
Congruence? how?
SAS
Congruence? how?
SSS
Congruence? how?
11
Find the value of the variable that results in congruent triangles.
4
Find the value of the variable that results in congruent triangles.
5
Find the value of the variable that results in congruent triangles.
7
Find the value of the variable that results in congruent triangles.
9
Find the value of the variable that results in congruent triangles.
Third Angle Theorem
If two angles of two different triangles are congruent, then the third angle of each triangle is also congruent
ASS (text)
Not a congruence theorem. If two sides and the non included angle are congruent, then we know nothing.
365
Number of days it takes for the Earth to orbit the sun
Interior Angles of a Triangle
The angles "inside" the triangle
geometry
The class you are in now
Triangle Sum Theorem
The sum of the angles of a triangle = 180 degrees
Scalene Triangle
Triangle that has three different side lengths
Give the relationship of 8 and 1
alternate exterior
Give the relationship of ∠1 and ∠8
alternate exterior
Give the relationship of ∠4 and ∠6
alternate interior
AAS
congruence? how?
ASA
congruence? how?
SAS
congruence? how?
SSS
congruence? how?
not enough info
congruence? how?
Give the relationship of 7 and 3
corresponding
Give the relationship of 1 and 7
same side exterior
Give the relationship of 2 and 8
same side exterior
Give the relationship of 8 and 2
same side exterior
Give the relationship of 3 and 5
same side interior
Give the relationship of 2and 1
supplementary
Hypotenuse
the side opposite to the right angle in a right triangle
Give the relationship of 1 and 4
vertical
Give the relationship of 2 and 3
vertical
Give the relationship of 3 and 2
vertical
Give the relationship of 5 and 8
vertical