Scale and Area Relationships

The video tutorial covers creating scale drawings, starting with calculating the scale of a book image on a monitor. It then moves on to creating scale drawings of the Colombian flag using different scales. The lesson continues with comparing the areas of scaled triangles and concludes with identifying scaled copies of a rectangle among various quadrilaterals.

What is the scale used for the image of the book on the website?

• 1 to 3

• 1 to 12

• 1 to 6

• 1 to 9

If the actual book is 18 inches tall, what is the height of the book's image on the computer monitor?

• 3 inches

• 6 inches

• 9 inches

• 12 inches

Using a scale of 1 cm to 2 feet, what is the height of the yellow stripe in the scale drawing of the Colombian flag?

• 0.5 cm

• 2 cm

• 1 cm

• 1.5 cm

With a scale of 2 cm to 1 foot, how long is the Colombian flag in the scale drawing?

• 12 cm

• 6 cm

• 8 cm

• 10 cm

How many times larger is the area of triangle F compared to triangle G?

• 4 times

• 3 times

• 2 times

• 5 times

What is the area of triangle B if triangle G has an area of 6 square units?

• 1.5 square units

• 3 square units

• 4.5 square units

• 6 square units

What is the area of triangle H if its base is 2 and height is 8/3?

• 16/3 square units

• 8/3 square units

• 4/3 square units

• 24/3 square units

How many times larger is the area of triangle F compared to triangle B?

• 20 times

• 8 times

• 12 times

• 16 times

Which of the following is a scaled copy of the unlabeled rectangle with dimensions 4 by 2?

• 1 by 2

• 2 by 4

• 3 by 5

• 5 by 10

If a rectangle has dimensions 5 by 10, is it a scaled copy of the original rectangle with dimensions 4 by 2?

• No

• Yes

• Only if the scale is 2:1

• Only if the scale is 1:2