Similarity Problem 1

 

Given:  Points A, B, C, D are collinear.  The figure ABCD is similar to PQRS with ratio of similitude (scaling factor) from ABCD to PQRS = 2/3.

 

 

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, given the clues.

 

PQ = ____

RS = ____

QR = ____

PS = ____

CLUES:

 

AB = 6

 

 

CD = 4

 

BC = 2

 

 

AD = 12

 


Similarity Problem 2

 

Given:  ABC is a triangle.  The figure ABC is similar to PQR.

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, given the clues.

 

PQ = ____

RP = ____

QR = ____

 

CLUES:

 

AB = 14

 

 

CA = 6

 

BC = 9

 

 

Scaling factor from ABC to PQR = 3/5.

 


Similarity Problem 3

 

Given:  ABC is a triangle.  The figure ABC is similar to PQR.

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, given the clues.

 

RP = ____

Scaling factor from ABC to PQR = ____

QR = ____

 

CLUES:

 

AB = 6

 

 

CA = 8

 

BC = 12

 

 

PQ = 9

 


Similarity Problem 4

 

Given:  ABC and PQR are triangles.

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, or answer the questions, given the clues.

 

Is PQR similar to ABC? Why?

___________

If the triangles are similar, what is the scaling factor from ABC to PQR? ___________

RP = ____

 

CLUES:

Angle ABC = Angle PQR

CA = 12

 

AB = 5

 

 

PQ = 3

 

BC = 15

 

 

QR = 9

 


 

Similarity Problem 5

 

Given:  Points A, B, C, D are collinear.  The figure ABCD is similar to PQRS.

 

 

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, given the clues.

 

PQ = ____

RS = ____

Ratio of similitude (scaling factor) from ABCD to PQRS = ____

 

CLUES:

 

AB = 3

 

 

CD = 1

 

BC = 2

 

 

QR = Sqrt(2)

 


Similarity Problem 6

 

Given:  ABC is an isosceles triangle, with AB = AC.

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, or answer the questions, given the clues.

 

Is CDB similar to ABC? Why?

___________

If the triangles are similar, what is the scaling factor from ABC to CDB? ___________

BD = ____

AD = ____

CLUES:

 

CB = CD

 

 

AC = 12

 

CB = 5

 

 

 

 


Similarity Problem 7

 

Given:  ABC is right triangle, with angle ACB a right angle.

 

(FIGURE NOT DRAWN TO SCALE.)

 

Find the following distances, or answer the questions, given the clues.

 

Is ACD similar to ABC? Why?

___________

If the triangles are similar, what is the scaling factor from ACD to ABC? ___________

AD = ____

CD = ____

CLUES:

 

Angle ADC is a right angle.

 

 

AC = 12

 

AB = 15

 

 

BC = 9