Exploring Proportions and Shadows

The video tutorial explains how to write and solve ratios using a picture selection example. It starts with calculating the ratio of a flag's height to its shadow and then sets up a similar problem for a truck. The tutorial demonstrates solving for an unknown variable using scale factors and offers cross multiplication as an alternative method.

What is the first step in solving the problem presented in the video?

• Write a ratio of the width of the object to the shadow

• Select a picture from the drop-down menu

• Measure the length of the shadow

• Calculate the area of the object

What are the given height and shadow length of the flag?

• Height: 5, Shadow: 8

• Height: 8, Shadow: 10

• Height: 8, Shadow: 5

• Height: 10, Shadow: 8

What is the height of the truck if its shadow is 10 and the flag's shadow is 5?

• 20

• 8

• 16

• 10

Which method is suggested as the easiest for solving the proportion in this problem?

• Using arrows

• Using a ruler

• Using scale factor

• Using a calculator

If the shadow of an object is doubled, what happens to the height of the object in the proportion?

• It is tripled

• It remains the same

• It is doubled

• It is halved