Vocabulary
Angles
Triangles
Transformations
Theorems & Post.
100
A three sided polygon.
What is a triangle?
100
A triangle with side lengths 6 inches, 3 inches, 6 inches
What is an example of an isosceles triangle?
100
A triangle with 3 congruent sides.
What is an equilateral triangle?
100
The type of transformation shown here.
What is a translation?
100
What is B
200
A triangle that has three acute angles.
What is an acute triangle?
200
The third angle in a triangle when one angle = 120 degrees, another = 20 degrees.
What is 40 degrees?
200
A triangle with no congruent sides.
What is a scalene triangle?
200
The type of transformation shown here:
What is a rotation?
200
Congruency shown by three sides of a triangle congruent to three sides of another triangle.
What is SSS
300
A triangle with two congruent sides (and angles).
What is an isosceles triangle?
300
The sum of the remote interior angles of a triangle.
What is a way to find an exterior angle of a triangle?
300
The sum of the interior angles of a triangle.
What is 180?
300
The type of transformation shown here.
What is a reflection?
300
Side CA =
<B =
CA = DF
<B = < E
400
A transformation that is also known as a slide.
What is a translation?
400
The exterior angle, when the two remote interior angles are 20 degrees and 100 degrees.
What is 120 degrees?
400
The vertex angle in an isosceles triangle if a base angle is 25 degrees.
What is 130 degrees?
400
Where the pre-image and image of a shape are exactly the same shape and size.
What is a congruence transformation?
400
The postulate that shows these triangles are congruent.
What is Side-Angle-Side?
500
A transformation that is flipped over a mirror line.
What is a reflection?
500
The value of x when the interior angles are = 45 and 5x, and the exterior angle = 9x + 9.
What is 9?
500
4 ways that we learned in this chapter to prove triangles are congruent
What are SAS, AAS, ASA, SSS?
500
The formula that is used to verify triangle congruence by SSS.
What is the distance formula?
500
The postulate that shows that the triangles are congruent.
What is Angle-Side-Angle?