Geometry Chapter 3 Review

Congruence of triangles Part I

100

What is a triangle that has no congruent sides?

Scalene

100

When the sides of a polygon are extended, other angles are formed. The new angles that form a linear pair with the interior angles are called _____. 

Exterior angles

100

In which case, we can say two polygons are congruent? (Don't use postulates)

If all corresponding angles and sides are all congruent.

Congruence Part II

100

I only know that three sides of my triangle are congruent to those of your triangle. According to ____, I can conclude that mine and yours have three congruent angles too. 

SSS(side/side/side) postulate

100

If two sides and an angle of my triangle are congruent to those of your triangle, then mine and yours must be the shape. 

False.

100

Consider an angle that is formed by two sides of a polygon. This angle is called ________ of the two sides.

Included angle

Congruence Part III

100

If two angles and one side(which is not an included side) of my triangle are congruent to those of your triangle. Do our triangles have exactly the same shape?

Yes. (By the AAS postulate)

100

In a right triangle, the side opposite the right angle is called _______

Hypotenuse

100

In a right triangle, the sides adjacent to the right angle is called _______. 

Legs

Rigid Trasformation

100

A transformation is an operation that moves/changes a figure to produce a new figure. The new figure is called the _________

Image

100

Reflection is a transformation across a line. What is the name of this line? 

Line of Reflection

100

After reflecting on the original point, _______ is preserved(do not change). 

The distance from the line of reflection

100

Rotation is a transformation about the center of rotation. After rotating a point, __________ should be preserved. 

The distance from the center of the rotation.

100

If every point of a figure moves the same distance in the same direction, this is _________

translation