Finding Actual Length Using Scale

The video tutorial explains how to determine the actual length of an object using a given image scale. It introduces the concept of a ratio between the image and the actual object, and demonstrates how to apply this ratio to calculate the object's real length. The tutorial concludes with a simple calculation to find the final answer.

What is the main objective of the video tutorial?

• To understand the history of measurement.

• To learn how to draw a leaf.

• To calculate the area of a leaf.

• To find the actual length of an object using a scale.

What is the scale of the image of the leaf mentioned in the video?

• 1.02

• 2.01

• 0.12

• 1.20

According to the video, what does the equation for finding the actual length involve?

• Subtracting the actual object length from the image length.

• Adding the image length to the actual object length.

• Multiplying the image length by the actual object length.

• Dividing the image length by the actual object length.

In the ratio 1:0.2, what does the '1' represent?

• The actual object length

• The width of the leaf

• The image length

• The scale factor

What does the video suggest about the relationship between the image and actual object?

• They are proportional

• They are equal

• They are unrelated

• They are inversely proportional

What is the known length of the image in the video?

• 5 centimeters

• 50 centimeters

• 10 centimeters

• 20 centimeters

What is the missing part in the equation setup?

• The actual length of the object

• The width of the image

• The height of the object

• The scale factor

What is the first step in solving the equation for the actual length?

• Identify the known values

• Draw the leaf

• Measure the width

• Calculate the area

What is the significance of the number 50 in the video?

• It is the length of the image

• It is the scale factor

• It is the width of the leaf

• It is the height of the object

How do you transform the ratio from 1 to 50 in the video?

• By adding 50

• By dividing by 50

• By subtracting 50

• By multiplying by 50