Unit 3B Study Guide Part 2 (STA): Exploring Ratios and Proportional Relationships

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7 questions

Triangle 2 is a scale copy of triangle 1. Use the scale factor to solve for the missing side x.

Triangle ABC is similar to Triangle DEF. What is the perimeter of Triangle DEF?

Brittany has a blueprint of her bedroom that is 2 in by 3 inches. 

What is the actual length? _______ (just type in the number)

What is the actual width? _______ (just type in the number)

The triangles below are similar.

Are the two triangles similar and why or why not?

The figures below are both similar rectangles. The larger rectangle is the scaled copy.


What is the scale factor? _______ 
What is the area of the original rectangle? _______ 
What is the area of the scaled copy? _______ 
How many times bigger is the scaled copy? _______ 

Unit 3B Study Guide Part 2 (STA): Exploring Ratios and Proportional Relationships

Unit 3B Study Guide Part 2 (STA): Exploring Ratios and Proportional Relationships

Triangle 2 is a scale copy of triangle 1. Use the scale factor to solve for the missing side x.

Triangle ABC is similar to Triangle DEF. What is the perimeter of Triangle DEF?

The triangles below are similar.

Are the two triangles similar and why or why not?

Triangle 2 is a scale copy of triangle 1. Use the scale factor to solve for the missing side x.

Triangle ABC is similar to Triangle DEF. What is the perimeter of Triangle DEF?

The area of Rectangle ABCD is 30 square feet. A similar Rectangle PQRS has an area of 120 square feet.

If Rectangle ABCD has a width of 5 feet and a length of 6 feet, what must be the length and width of Rectangle PQRS?

Abel is creating a scaled copy of the triangle below.

Select ALL the sets of values that could be the side lengths of the scaled copy.

The triangles below are similar.

Are the two triangles similar and why or why not?

Unit 3B Study Guide Part 2 (STA): Exploring Ratios and Proportional Relationships

Unit 3B Study Guide Part 2 (STA): Exploring Ratios and Proportional Relationships

Triangle 2 is a scale copy of triangle 1. Use the scale factor to solve for the missing side x.

Triangle ABC is similar to Triangle DEF. What is the perimeter of Triangle DEF?

The triangles below are similar.Are the two triangles similar and why or why not?

Triangle 2 is a scale copy of triangle 1. Use the scale factor to solve for the missing side x.

Triangle ABC is similar to Triangle DEF. What is the perimeter of Triangle DEF?

The area of Rectangle ABCD is 30 square feet. A similar Rectangle PQRS has an area of 120 square feet.If Rectangle ABCD has a width of 5 feet and a length of 6 feet, what must be the length and width of Rectangle PQRS?

Abel is creating a scaled copy of the triangle below.Select ALL the sets of values that could be the side lengths of the scaled copy.

The triangles below are similar.Are the two triangles similar and why or why not?

The triangles below are similar.

Are the two triangles similar and why or why not?

The area of Rectangle ABCD is 30 square feet. A similar Rectangle PQRS has an area of 120 square feet.

If Rectangle ABCD has a width of 5 feet and a length of 6 feet, what must be the length and width of Rectangle PQRS?

Abel is creating a scaled copy of the triangle below.

Select ALL the sets of values that could be the side lengths of the scaled copy.

The triangles below are similar.

Are the two triangles similar and why or why not?