1. JEOPARDY

2. Proportions in Triangles
& Ratios
Similar
Polygons
Similar
Triangles
Proportions in Triangles
$100
$100
$100
$100
$200
$200
$200
$200
$300
$300
$300
$300
$400
$400
$400
$400
$500
$500
$500
$500

3. Two ratios that are equal
Proportions for $100
Two ratios that are equal

4. Proportions for $200

5. Proportions for $300
Find the ratio of the length to the width of the rectangle and simplify.
60 feet
78 feet

6. Proportions for $400
The similarity ratio of two rectangles is 4:5. What is the ratio of the perimeters and the areas?

7. DAILY DOUBLE
The area of a regular octagon is 35 cm2. What is the area of a regular octagon with side six times as large?

8. Similar Polygons for $100 If two polygons are similar then
1) Corresponding __________ are congruent
and
2) Corresponding sides are __________.

9. Determine if the two figures are similar and explain:
Similar Polygons for $200
Determine if the two figures are similar and explain:
5 cm
10 cm
10 cm
20 cm

10. Similar Polygons for $300
The measures of the corresponding sides of the polygons are proportional. If AD = 6, DC = 3, and WZ = 33, find YZ. (not drawn to scale) X B A C W Y D Z

11. The two polygons are similar. Find the value of x.
Similar Polygons for $400
The two polygons are similar. Find the value of x. 15 30 x 18

12. Similar Polygons for $500
The polygons below are similar, but not necessarily drawn to scale. Find the values of x and y.
x-1 9
y+1 20 21 12 45 27

13. Similar Triangles for $100
What are the three different ways to prove triangles similar?
AND
Are equilateral triangles always similar? What would be the easiest way to prove your answer?

14. Similar Triangles for $200
Are the two triangles similar? If so, tell which theorem you used and explain why. M R N S T

15. Similar Triangles for $300
Are the triangles similar? If so, tell which theorem you used and explain why. 3 2 3 5
3 1/3 8

16. Explain why the triangles are similar. Then find the value of x.
Similar Triangles for $400
Explain why the triangles are similar. Then find the value of x.
4.5
25º 5 x
25º 3

17. Similar Triangles for $500
Campsites F and G are on opposite sides of a lake. A survey crew made the measurements shown on the diagram. What is the distance between the two campsites? The diagram is not scale. F
82.8m
82m
47m
73.8m
92m G

18. Use the Side-Splitter Theorem to find x given that PQ || BC.
Proportions in Triangles for $100
Use the Side-Splitter Theorem to find x given that PQ || BC. A 8 12 P Q 18 x C B

19. Proportions in Triangles for $200
Given AE || BD solve for x A x B 11 E C D 5 7

20. Proportions in Triangles for $300
Find x to the nearest tenth. Given that angle BAC is congruent to angle CAD B x
15.7 C
9.6 A D
20.2

21. Proportions in Triangles for $400
Solve for x and y y
16.5 26 15 x 30

22. Proportions in Triangles for $500
In Lexington Main Street, Vine Street, and High Street are parallel streets that intersect South and North Upper. How long is the walk from Main Street to Vine Street along South Upper?
South Upper
North Upper
High St
425ft
330ft
Main St
500ft
Vine St

23. DAILY DOUBLE

24. FINAL JEOPARDY

25. Final Jeopardy Question