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Biblioteka

Open Up - Grade 7 - Mathematics - Unit 1 - Lesson 5

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"Source: Open Up Resouces (Download for free at openupresources.org.)"

Pitanje 1
1.

Rectangles P, Q, R, and S are scaled copies of one another. For each pair, decide if the scale factor from one to the other is greater than 1, equal to 1, or less than 1.

  • From R to P

  • From P to Q

  • From S to P

  • From Q to S

  • From Q to R

  • From P to R

  • From P to S

  • Less Than 1

  • Greater Than 1

  • Equal To 1

Pitanje 2
2.

Triangle S and Triangle L are scaled copies of one another.

What is the scale factor from S to L?

Pitanje 3
3.

Triangle S and Triangle L are scaled copies of one another.

What is the scale factor from L to S?

Pitanje 4
4.

Triangle S and Triangle L are scaled copies of one another.

Triangle M is also a scaled copy of S. The scale factor from S to M is \frac{2}{3}. What is the scale factor from M to S?

Pitanje 5
5.

Are two squares with the same side lengths scaled copies of one another?

Pitanje 6
6.

Quadrilateral A has side lengths 2, 3, 5, and 6. Quadrilateral B has side lengths 4, 5, 8, and 10. Could one of the quadrilaterals be a scaled copy of the other?

Pitanje 7
7.

Select all the ratios that are equivalent to the ratio 12 : 3. Explain how you know.