Ratios
Proportions
Similar Polygons
Definitions
Etc.
100

4/40

1/10

100

x/5 = 8/20

x=2

100

True or false? If △ABC ~ △DEF, and angle B is 40 degrees, then angle E is 40 degrees.

True

100

In a/b=c/d, a and d are known as what?

Extremes

100

Find the geometric mean of 4 and 20.

4 root 5

200

(12x2z3) / (4x3yz)

3z2/xy

200

x/2 = 4/7 = 10/16

x = 5/4 and y = 32/5

200

Two polygons are similar polygons if corresponding ____ are congruent and corresponding _____ are proportional.

Angles, side lengths

200

Supplementary angles add up to how many degrees?

180

200

What are Mr. Tan's favorite cookies?

Snickerdoodles

300

A pair of angles are complementary and are in the ratio of 4:5. What are the measures of both angles?

40 and 50 degrees

300

(x-2)/x = x/(x+3)

x = 6

300

Draw two polygons that are similar.

300

Complementary angles add up to how many degrees?

90

300

Where did Mr. Tan go to university?

San Francisco State University

400

10in. : 3 ft.

5/18

400

Write all 4 properties of proportions.

a/b=c/d, b/a=d/c, a/c=b/d, and (a+b)/b = (c+d)/d

400

△RST ~ △XYZ, list all pairs of congruent angles and proportional side lengths.

Angles: R=X, S=Y, and T=Z.
Side Lengths: RS=XY, ST=YZ, and TR=ZX.

400

Write 4 to 6 in two different ratios and simplify the ratios.

2/3 and 2:3

400

I love you.

Thank you.

500

3 kilometers : 100 meters

30

500

(x-1)/(x+2) = 10/(3x-2)

x = 6 and x = -1

500

Polygon ZYXW ~ FGHJ. If side FG is 20 and side ZY is 25, what is the scale factor of ZYXW to FGHJ.

5/4

500

In a _______, the product of the extremes equals the product of the means.

Proportion

500

Who was Mr. Tan's Algebra II teacher at Westmoor?