# Ratios, Proportions and Similarity Review - PowerPoint PPT Presentation

1 / 12
Title:

## Ratios, Proportions and Similarity Review

Description:

### Ratios, Proportions and Similarity Review Geometry Wednesday, Dec. 1 Ratios & Proportions Ratios & Proportions Similar Polygons Similar Polygons Similar Triangles ... – PowerPoint PPT presentation

Number of Views:178
Avg rating:3.0/5.0
Slides: 13
Provided by: Dena173
Category:
Tags:
Transcript and Presenter's Notes

Title: Ratios, Proportions and Similarity Review

1
Ratios, Proportions and Similarity Review
• Geometry
• Wednesday, Dec. 1

2
Ratios Proportions
• The Washington Monument in Washington, D.C., is
about 556 ft tall. A three-dimensional puzzle of
the Washington Monument is 24 in. tall. What is
the ratio of the height of the puzzle to the
height of the real monument?
• If which of the following must be
true?

3
Ratios Proportions
• Solve each proportion for x.

4
Similar Polygons
• The polygons are similar. Find the value of the
variable.
• Complete the proportions and congruence
statements.

5
Similar Polygons
• Are the polygons similar? If they are, write a
similarity statement, and give the similarity
ratio. If they are not, explain.

6
Similar Triangles
• Explain why the triangles are similar. Write a
similarity statement for each pair.

7
Similar Triangles
• Find the value of x.

8
Similar Triangles
• Natasha places a mirror on the ground 24 ft from
the base of an oak tree. She walks backward until
she can see the top of the tree in the middle of
the mirror. At that point, Natashas eyes are 5.5
ft above the ground, and her feet are 4 ft from
the image in the mirror. Find the height of the
oak tree.

9
Similarity in Right Triangles
• Find the geometric mean of each pair of numbers.
• 32 and 8 4 and 16
• Find the values of the variables.

10
Proportions in Triangles
• Find the values of the variables.

11
Proportions in Triangles
• Find the values of the variables.

12
Homework
• STUDY FOR TEST TOMORROW!!!