Proportions and Scale Drawing and Similar Figures

To make plant fertilizer, you mix 12 ounces of Lime with every 10 ounces of water. If you use 80 ounces of water, how much lime do you need?

• 96 ounces

• 80 ounces

• 1.5 ounces

• 66.67 ounces

On a map, the distance between two cities is 7 centimeters. The map uses a scale in which 1 centimeter represents 25 kilometers. What is the actual distance between these two cities in kilometers?

• 175

• 185

• 200

• 220

Tags

CCSS.6.RP.A.3B

A scale model of a building uses a scale in which 1 inch represents 20 feet. The height of the building is 180 feet.

What is the height of the scale model in inches?

• 90 inches

• 9 inches

• 900 inches

• 3600 inches

Tags

CCSS.7.RP.A.2C

Rectangle ABCD and rectangle EFGD are similar figures. Which of the following proportions is true for the figures?

Tags

CCSS.HSG.SRT.A.2

Triangle ABC and triangle WXY are similar figures. Which of the following proportions is true for the figures?

Tags

CCSS.HSG.SRT.A.2

What is a scale drawing?

• a board of scales

• Bigger or smaller proportion of an actual object.

• a drawing of all types of scale 

• to show how to draw

Tags

CCSS.7.G.A.1

A map is a

• scale drawing

• scale model

Tags

CCSS.7.G.A.1

Match the following:

• congruent (equal)

• Similar figures have angles that are

• proportional

• To find the missing side length in similar figures

• create a proportion and cross multiply

• Similar figures are

• in the same location

• Similar figures have side lengths that are

• the same shape but different sizes

• Corresponding

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

The distance from Point A to Point B on a scale drawing is 6 cm. If the scale is 1cm : 10m. What is the actual distance from A to B?

• 6 m

• 10 m

• 18 m

• 60 m

Tags

CCSS.7.RP.A.2C

Maura is building a 24 in tall model of the Gateway Arch in St. Louis, Missouri.  The scale is 3 in : 78.75 ft.  Estimate the height of the actual arch.

• 630

• 600

• 400

• 200