Ratios and Proportions
Miscellaneous
Similar Triangles
Applications
It's all Relative
100
9/2 = 4/b
What is b=8/9?
100

Three rules to prove triangles are similar.

What is:

SAS similarity

AA similarity

SSS similarity

100
Angles must be _________.
What is congruent?
100
Malik is standing outside in the sun. Malik is 72” tall and his shadow is 60” long. Jeremy is standing near Malik. Jeremy’s shadow is 56” long. Draw a diagram to represent this situation and use it to calculate Jeremy’s height.
What is 67.2 in?
100

Name the similarity postulate/theorem you would use. (option A)


What is AA Similarity Postulate?

200

The simplified form of the ratio 16 m: 500 cm

What is 16:5?

200

DAILY DOUBLE!!!

Place your wager

What is x= -b + or - sqrt (b)^2 -4ac all over 2a?

200
Corresponding sides must be _______.
What is proportional?
200
If a tree casts a 24-foot shadow at the same time that a yardstick casts a 2-foot shadow, find the height of the tree.
What is 36 feet?
200

Name the triangle similarity postulate/theorem you would use. (option B)

What is SAS Similarity Theorem?

300

What is AC?

What is 70?

300

Isosceles right triangles are _________ similar? 

(sometimes, always, never)

What is always?

300
Triangle ABC has sides 5, 10, 15. Triangle DEF has sides 3, 6, 9. These two triangles are _______.
What is similar?
300

A triangle with side lengths 5,11, and 15 is similar to another triangle with the longest side being 24. What is the perimeter of the larger triangle?

What is 49.6?

300

Name the triangle similarity postulate/theorem you would use. (option C)

What is the triangles are not similar?

400

9/11 = (n-6)/(n+9)

What is 73.5?

400

The scale factor of a larger triangle from a smaller triangle is 2.5. Find the area of the larger triangle if the smaller triangle has an area of 32.

What is 200?

400
Triangle ABC has sides 5, 7, 11. Triangle DEF has sides 6, 8, 10. These triangles are ___________.
What is not similar?
400
Ramon places a mirror on the ground 45 ft from the base of a geyser. He walks backward until he can see the top of the geyser in the middle of the mirror. At that point, Ramon’s eyes are 6 ft above the ground and he is 7.5 ft from the mirror. Use similar triangles to find the height of the geyser.
What is 36 feet?
400

DAILY TRIPLE!!! Place your wager.

Name the triangle similarity postulate/theorem you would use. (option D)

What is not Similar?

500

DAILY TRIPLE!!!


What is 15?

500

Given the Trapezoid RSTU with vertices R(-13, 7), S(-1, 7), T(-1, -5), and U(-13, -9); scale factor: k = 1/4,

center of dilation: (-5, 3)

What is the vertex for T in the new image?

What is (-4, 1)?

500

ABC and DEF are similar. The two smallest sides in ABC are 4 and 5. The two smallest sides in DEF are 2 and x. x = ___.

What is 5/2 or 2.5?

500
On level ground, the base of a tree is 20 ft from the bottom of a 48-ft flagpole. The tree is shorter than the pole. At a certain time, their shadows end at the same point 60 ft from the base of the flagpole. How tall is the tree?
What is 32 feet?
500
Name the triangle similarity postulate/theorem you would use. (option E)
What is AA Similarity Postulate?
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