Geometry 7-5 Proportions in Triangles
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by Matthew Richardson
| 26 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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The outlined content above was added from outside of Formative.
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10 pts
Solve It! An artist uses perspective to draw parallel lampposts along a city street, as shown in the diagram. What is the value of x? Enter only a number rounded to the nearest hundredth. Include a digit in the ones place, a 0 if necessary.
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10 pts
Solve It! Justify your response to the previous item.
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Problem 1 Got It?
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Problem 1 Got It?
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Problem 2 Got It?
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Problem 3 Got It?
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Compare and Contrast: How is the Corollary to the Side-Splitter Theorem related to Theorem 6-7: If three (or more) parallel lines cut off congruent segments on one transversal, then they cut off congruent segments on every transversal?
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Error Analysis: A classmate says your can use the Side-Splitter Theorem to find both x and y in the diagram. Explain what is wrong with your classmate's statement.
Review Lesson 7-4
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Review Lesson 5-3: Find the center of the circle that you can circumscribe about △ABC.
A(0, 0), B(6, 0), C(0, -6)

Enter your response in this format: (-2, 5)
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10 pts
Review Lesson 5-3: Find the center of the circle that you can circumscribe about △ABC.
A(2, 5), B(-2, 5), C(-2, -1)

Enter your response in this format: (-2, 5)
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10 pts
Preview Lesson 8-1: Square the lengths. Match each length with its square.
  • 3 m
  • 5 m
  • 12 in.
  • 4 cm
  • 12 ft
  • 144 ft²
  • 9 m
  • 16 cm²
  • 9 m²
  • 144 in.²
  • 25 m²
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15 pts
Vocabulary Review: Complete the items on the canvas.
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5 pts
Enter only the word that completes the statement.
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Enter only the word that completes the statement.
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Enter only the word that completes the statement.
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10 pts
Reflection: Math Success
Add to my formatives list