Ratios and Proportions
Solving Similar Triangles
Similarity by AA, SSS, & SAS
Misc.
Three Parallel Lines
100

(EC)/(CB)=(FC)/?

DC

100

If these two triangles are similar...

x= ?

x = 13.5

100

The 3 similarity theorems for triangles.

AA, SSS, SAS

100


x=12


100

True or false: The three parallel lines theorem be applied to any number of parallel lines and transversals.

True

200

Simplify this ratio.

50:250

1:5

200


LK = 7

200

If two sides in one triangle are proportional to two sides in another triangle and the included angle in both are congruent, then the two triangles are similar.

SAS Similarity Theorem

200

What value of x would make the two triangles similar?

X = 18

200

a=12

300

DOUBLE POINTS (60 Sec)

Which 3 numbers have the same answer whether they're added or multiplied together?

1,2,3

300

Find AB

AB = 40

300

Are they similar? If so, how?


Yes, SAS

300

A photographer dilated their photo for an ad campaign by 400%. The perimeter of the enlargement was 144 in, what was the perimeter of the original photo?

36 In


300

b=30

400

Figure A has a side length of 12.  Figure B has a side length of 8.  What is the scale factor from A to B?

2/3

400

Find x

x = 4.8

400

What value of x would make the two triangles similar?

AA

400

The ratio of the sides of similar squares is 2/3.  What is the ratio of the areas?

4/9

400

What is x?

4760

500

x/10=42/35

x=12

500

What is the scale factor of △ABC to △YXZ?

3/4

500

These triangles are similar by ____.

AA

500

What is the most viewed youtube video of all time?

Baby Shark Dance by Pinkfong (16.6+ B views)
500

What is y?

3570