Similar Figures
Similar Triangles
Solving for Sides
Proofs
Wild Card
100
If a figure is being dilated from the center, what would you do to find the new coordinates?
Multiply the scale factor by each coordinate.
(x*SF, y*SF)
100
What are the 3 similarity shortcuts?
SSS, SAS, AA
100
Solve the proportion
x/3 =28/7
x=12
100
What do all proofs start with?
Given information
100
What sport does Mr. Topete coach?
Wrestling
200
Determine the scale factor
SF = 1/2
200
Write the similarity statement
angle X cong angle M
anglez cong angleo
triangleXYZ ~ triangleMNO
200
Solve the proportion
(20+x)/20=15/12
x=5/4
200
When proving similar triangles,
Angles must be ....
and Sides must be ...
Angles must be congruent and sides must be proportional
200
Where did Mr. Maestre go to college?
San Diego State University
Go Aztecs!
300
Determine the Scale Factor
SF = -2
300
Which similarity shortcut would you use to determine if the triangles are similar?
SAS
300
Set up the proportion
8/6=(9+x)/9
300
Proportional means that the sides have ...
the same scale factor
300
What is Mr. Maestre's favorite soccer team?
Liverpool
400
Determine the Dilation (SF and center)
Dilated by 2 from the origin
400
Determine if the triangles are similar
Yes by AA
400
Determine the length of the missing side
x = 12
400
Complete the proof table for parts (a), (b),and (c)
24/16=3/2
angleABC cong angle DFE
12/8=3/2
400
What year did Mr. Topete graduate CVH?
2020 / CO '20
500
Given the figure GREAT with coordinates:
G(3,1);R(9,2);E(6,5);A(4,8);T(1,3)
what are the new coordinates if the SF=2
G'(6,2);
R'(18,4);
E'(12,10);
A'(8,16);
T'(2,6)
500
Determine if the triangles are similar
Yes, by AA, SAS, or SSS
500
Set up the proportion and determine the length of the missing side
(55+x)/55=48/40
x=11
500
Complete the proof table.
(a)
(Q'R')/(QR)=(R'S')/(RS)=(S'Q')/(SQ)=5/1
(b) corr. sides are proporitonal
(c) Dilation by SF of 5
500
What breed is Mr. Topete's puppy?
Rottweiler
