Triangle Similarity: AA — Quiz Answers

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Which transformations could be performed to show that triangle ABC is similar to triangle cap A double prime cap b double prime cap c double prime ?

A
a reflection over the x -axis, then a dilation by a scale factor of 3
B
a reflection over the x -axis, then a dilation by a scale factor of 1 third
C
a 180 degrees rotation about the origin, then a dilation by a scale factor of 1 third
D
a 180 degrees rotation about the origin, then a dilation by a scale factor of 3
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Which piece of additional information can be used to prove triangle CEA approximates triangle CDB ?

A
triangle BDC is a right triangle.
B
angle BDC and angle AED are right angles.
C
line segment AE is congruent to line segment ED
D
angle DBC is congruent to angle DCB
43

Right triangle ABC is reflected over line segment AC , then dilated by a scale factor of 2 thirds to form triangle DEC Which statements about the two triangles must be true? Choose three correct answers.

A
3DE is equal to 2AB
B
2 m angle cap A is equal to 3 m angle cap d
C
3BC is equal to 2EC
D
angle cap b is congruent to angle cap e
E
triangle ABC approximates triangle DEC
F
3 m angle cap A is equal to 2 m angle cap d
44

What are the coordinates of point cap s double prime ?

A
open paren negative 15 halves comma 0 close paren
B
open paren 9 halves comma negative 3 halves close paren
C
open paren negative 9 halves comma 15 halves close paren
D
open paren negative 3 halves comma 9 halves close paren
45

Which transformations could have occurred to map triangle ABC to triangle cap A double prime cap b double prime cap c double prime ?

A
a rotation and a reflection
B
a translation and a dilation
C
a reflection and a dilation
D
a rotation and a dilation
47

Which piece of additional information can be used to prove triangle CEA approximates triangle CDB ?

A
angle BDC and angle AED are right angles.
B
line segment AE is congruent to line segment ED
C
triangle BDC is a right triangle.
D
angle DBC is congruent to angle DCB

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