STAAR Mastery Tutoring: Similar Figures and Scale Factor

Presentation

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Mathematics

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7th Grade

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Practice Problem

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Medium

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CCSS

6.NS.B.3, HSG.SRT.A.2, 6.RP.A.3D

Standards-aligned

Andrea Doerrig

Used 5+ times

FREE Resource

5 Slides • 5 Questions

SIMILAR FIGURES AND SCALE FACTOR

One year on planet Mercury is equivalent to 88 days on earth. How many days on Earth would be equivalent to 6.5 years on Mercury?

An engineer created a scale drawing of a building using a scale in which 0.25 inch represents 2 feet. The length of the actual building is 250 feet. What is the length in inches of the building in the scale drawing?

Fill in the Blanks

One year on venus is equivalent to 224.7 days on earth. How many days on earth, in decimal form, are equivalent to 9.5 years on venus?

Multiple Choice

In a scale used on a map, 1/4 inch represents 5 miles. On the map, what is the distance between two cities with an actual distance of 140 miles?

35 inches

20 inches

28 inches

7 inches

Multiple Choice

The length of a ruler is 12 inches. There are approximately 25.4 millimeters in 1 inch. Which measurement is closest to the length of the ruler in millimeters?

3,048 mm

30.48 mm

304.8 mm

3.048 mm

A flagpole casts a shadow 23.5 feet long. At the same time of day, Mrs. Gilbert, who is 5.5 feet tall, casts a shadow that is 7.5 feet long. How tall in feet is the flagpole? Round your answer to the nearest tenth

Multiple Select

Ms. Broussard used similar triangles to make a design. Which TWO statements about the triangles in the design must be true?

They have corresponding sides that are non-proportional.

They have corresponding sides that are congruent.

They have corresponding angles that are congruent.

They are the same size and shape.

They have corresponding sides that are proportional.

Multiple Choice

Answer the question in the picture.

5, 8, 10

14, 20, 22

9, 12, 14,

21, 30, 36

SIMILAR FIGURES AND SCALE FACTOR

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