How to get the real length knowing length in picture

The video tutorial explains how to determine the real height of a building using a photo and a given scale. It covers the concept of drawing scale, the process of setting up a ratio, and performing cross multiplication to find the actual height. The tutorial also emphasizes the importance of converting units from centimeters to meters for practical use. Finally, viewers are encouraged to apply the method to their own photos.

What is the scale used in the photo taken by Adam?

• 1 to 300

• 1 to 100

• 1 to 400

• 1 to 200

What is the drawing scale?

• The ratio of the drawing's area to the area in reality

• The ratio of the drawing's width to the width in reality

• The ratio of the drawing's volume to the volume in reality

• The ratio of the drawing's length to the length in reality

How do you find the real height of the building using the drawing scale?

• By cross multiplying the lengths in the drawing and reality

• By subtracting the length in the drawing from the length in reality

• By adding the lengths in the drawing and reality

• By multiplying the length in the drawing by the scale factor

What is the real height of the building in centimeters?

• 500 cm

• 2000 cm

• 1000 cm

• 1500 cm

What is the final real height of the building in meters?

• 20 meters

• 10 meters

• 25 meters

• 15 meters