Understanding Scale Factors and Measurements

The video tutorial covers how to compute actual lengths from scale drawings using ratio tables and equations. It includes examples such as determining the dimensions of a basketball court, garden, tablet advertisement, mall entrance, and a 5K run billboard. The tutorial emphasizes using scales to convert drawing measurements to real-life dimensions.

What is the first step in computing actual lengths from a scale drawing?

• Start with the actual length

• Begin with a given scale

• Use the equation y = kx

• Create a ratio table

In the basketball court example, what is the scale used?

• 1 inch to 20 feet

• 1 inch to 15 feet

• 1 inch to 25 feet

• 1 inch to 10 feet

How do you determine if the basketball court fits in the given space?

• By using a scale factor of 10

• By comparing the actual dimensions to the lot size

• By measuring the drawing directly

• By estimating the size visually

What is the scale used in the garden example?

• 1 cm to 25 meters

• 1 cm to 20 meters

• 1 cm to 15 meters

• 1 cm to 10 meters

In the garden example, what are the actual dimensions of the garden?

• 80 meters by 160 meters

• 40 meters by 80 meters

• 100 meters by 200 meters

• 60 meters by 120 meters

What is the scale used for enlarging the tablet advertisement?

• 0.25 inches to 0.5 inches

• 1 inch to 2 inches

• 0.25 inches to 1 inch

• 0.5 inches to 1 inch

How do you calculate the new dimensions of the tablet advertisement?

• By doubling the original dimensions

• By using a scale factor of 2

• By using a ratio table and the scale

• By estimating the size visually

What is the scale used for the mall entrance example?

• 1/8 inch to 5 feet

• 1/8 inch to 3 feet

• 1/8 inch to 4.5 feet

• 1/8 inch to 4 feet

How do you determine if the set piece fits through the mall entrance?

• By estimating the size visually

• By using a scale factor of 5

• By measuring the entrance directly

• By comparing the actual dimensions to the entrance size

What does a scale factor tell us?

• The measurement of the drawing

• The enlargement or reduction factor

• The ratio of drawing size to actual size

• The actual size of an object