Mathematics Grade 8 15 min

Side lengths and angle measures of similar figures

Side lengths and angle measures of similar figures

What you'll learn

  • Identify the correct operation (division) needed to solve word problems involving dividing decimals by whole numbers in 8 out of 10 problems.
  • Solve word problems involving division of decimals by whole numbers with at least 75% accuracy, showing all steps in the solution process.
  • Explain the meaning of the quotient (answer) in the context of a word problem involving division of a decimal by a whole number, providing a clear and accurate interpretation in at least 3 out of 4 problems.
  • Apply estimation strategies to determine if the answer to a division word problem involving decimals and whole numbers is reasonable, justifying their reasoning in writing for at least 2 out of 3 problems.

Tutorial Preview

1

Two similar triangles ABC and XYZ have sides AB=3 and XY=6. If side AC is 4, what is side XZ?

2

Quadrilateral PQRS is similar to WXYZ. If angle P is 75°, what is the measure of angle W?

3

Two similar polygons have a side ratio of 2:5. The perimeter of the smaller polygon is 10. What is the perimeter of the larger one?

Sample Practice Questions

Easy
Triangle ABC ~ XYZ. AB=2, XY=4. If BC=5, what is YZ?
0.10
1.2.5
2.7
3.20
Easy
Rectangle DEFG ~ HJKL. Angle D = 90°. What is angle H?
0.45°
1.90°
2.180°
3.?
Easy
Two similar shapes have a side ratio of 1:3. The smaller side is 4. What is the larger side?
0.7
1.1.33
2.12
3.4

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Frequently asked questions

What grade level is "Side lengths and angle measures of similar figures"?

Side lengths and angle measures of similar figures is a Grade 8 Mathematics lesson on ExcelOS.

What will I learn in Side lengths and angle measures of similar figures?

You'll be able to: Identify the correct operation (division) needed to solve word problems involving dividing decimals by whole numbers in 8 out of 10 problems; Solve word problems involving division of decimals by whole numbers with at least 75%….

Is "Side lengths and angle measures of similar figures" free to practice?

Yes. You can read the tutorial preview for free, and signing up for a free ExcelOS account unlocks the full tutorial and all practice questions with instant feedback.

How many practice questions are included with Side lengths and angle measures of similar figures?

This lesson includes 25 practice questions across multiple difficulty levels, each with instant feedback and explanations.

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