Unit6 Vocab Quiz

Match the following triangles with the correct images.

• Right Triangle

• 
• Icosceles Triangle

• 
• Scalene Triangle

• 
• Equilateral Triange

• 

Match the following

• Center of origin

• The factor by which every length in

  the pre-image is increased or decreased when

  you make a scaled copy

• Dilation

• The origin is often used as the center of dilation. If you are dilating a figure centered at the origin, you can multiply the coordinates of the points in the preimage by the scale factor to determine the points in the image

• Scale Factor

• The process of resizing an object by a certain scale factor

• Rigid Transformations

• Dilation

• Non-Rigid Transformations

• Translation, Reflection, Rotation

Triangle Midsegment Theorem: The segment joining the midpoint of two sides of a triangle is parallel to the third side and half the length.

• True

• False

If a line ​ (a)   two sides of triangle ​ (b)   the line must be ​ (c)   to the ​ (d)   of the triangle

• divides
• proportionally
• parallel
• third side

If two triangles have all pairs of ​ (a)   ​ are congruent and all pairs of corresponding ​ (b)   in the same ​ ​ (c)   then two triangles are ​ (d)  

• corresponding angles
• side lenghts
• proportion
• similar
• congruent

Translation and dilation takes ΔABC onto ΔFDE so ΔABC and ΔFDE are ........................ to each other.

• Congruent

• Similar

• Equilavent

• Contrary

∠A≅∠C, ∠DEA≅∠BEC then ∆DEA≅∆BEC

Which theorem defines the statement above?

• Angle-Angle Triangle Similarity Theorem

• Angle-Side-Angle Triangle Congruence Theorem

• Side-Angle-Side Triangle Congruence Theorem

• Triangle Proportionality Theorem

Segment A'B' is parallel to segment AB .

a. What is the length of segment AB ?

b. What is the length of segment B'B'?

• AB=7

  B'B'=3.2

• AB=6

  B'B'=2.3

• AB=8

  B'B'=3.2

• AB=3.2

  B'B'=7

An __________ in a triangle is a line segment

from a vertex to the opposite side that is

perpendicular to that side.

• Altitude

• Vector

• Congruent side

• Bisector

Match the following

• Hypotenuse

• The angle at which an object hits a surface

• Angle of incidence

• The angle at which the object bounces off of

  that surface

• Leg

• The sides other than the one opposite the right angle in a right triangle

• Pythagorean theorem

• The longest side of a right triangle, opposite the right angle

• Angle of reflection

• The sum of the squares on the legs of a right triangle is equal to the square on the hypotenuse a² + b² = c²