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Geometry 7-1 Ratios and Proportions
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by Matthew Richardson
| 30 Questions
Note from the author:
A complete formative lesson with embedded slideshow, mini lecture screencasts, checks for understanding, practice items, mixed review, and reflection. I create these assignments to supplement each lesson of Pearson's Common Core Edition Algebra 1, Algebra 2, and Geometry courses. See also mathquest.net and twitter.com/mathquestEDU.
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1
10 pts
Solve It! The table gives the wins and losses of a baseball team. In which year(s) did the team have the best record? Select all that apply.
1890
1930
1970
2010
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2
10 pts
Problem 1 Got It?
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3
10 pts
Problem 2 Got It?
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4
10 pts
Problem 3 Got It?
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5
10 pts
Problem 4 Got It?
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6
10 pts
Problem 4 Got It?
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7
10 pts
Problem 5 Got It? Use the proportion.

What ratio completes the equvalent proportion below?

y/7
7/y
x/6
x/7
8
10 pts
Problem 5 Got It? Use the proportion.

What ratio completes the equvalent proportion below?

(x + 7) / 7
(y + 6) / 7
(x + 6) / 6
9
10 pts
Problem 5 Got It? Reasoning: Explain why the first proportion below is an equivalent proportion to the second proportion below.


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10
10 pts
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11
10 pts
Two angles measures are in the ratio 5 : 9. Write expressions for the two angle measures in terms of the variable x.
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12
10 pts
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13
10 pts
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14
10 pts
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15
10 pts
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16
10 pts
Open-Ended: The lengths of the sides of a triangle are in the extended ratio 3 : 6 : 7. What are two possible sets of side lengths, in inches, for the triangle?
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18
10 pts
Vocabulary: What is a proportion that has means 6 and 18 and extremes 9 and 12?

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19
40 pts
Review Lesson 6-9: Write a coordinate proof of the statement. The diagonals of a square are perpendicular.
20
10 pts
Review Lessons 1-5 & 5-5: Identify two statements that contradict each other.
△PQR is isosceles.
△PQR is an obtuse triangle.
△PQR is scalene.
21
10 pts
Review Lessons 1-5 & 5-5: Identify two statements that contradict each other.
∠1 ≅ ∠2
∠1 and ∠2 are complementary.
m∠1 + m∠2 = 180
22
10 pts
Review Lesson 4-1:ABC ≅ △HIJ. Match corresponding (and congruent) components. Not all components will be used.
  • ∠I
    Answer by dragging items here
  • segment CA
    Answer by dragging items here
  • ∠H
    Answer by dragging items here
23
10 pts
Vocabulary Review: Write a ratio to compare 9 red marbles to 16 blue marbles. Select all that apply.
9 to 16
9/16
9:16
24
10 pts
Vocabulary Review: Identify the ratio, in simplest form, of vowels to consonants in each word. Not all ratios will be used.
  • comparison
    Answer by dragging items here
  • geometry
    Answer by dragging items here
  • ratio
    Answer by dragging items here
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25
5 pts
3
6
26
5 pts
3
6
27
5 pts
Enter only a number.
28
5 pts
Enter only a number.
29
10 pts
Use Your Vocabulary: Complete each sentence with the correct word.
  • Distance on a map is __?__ to the actual distance.
    Answer by dragging items here
  • The number of ounces in 3 lb is in __?__ to the number of ounces in 1 lb.
    Answer by dragging items here
30
10 pts
Reflection: Math Success
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