Scale Ratios and Enlargements

Mrs. Stevens reviews scale factors, focusing on enlargements. She solves problems involving a basketball court, a garden, and an advertisement, demonstrating how to calculate actual dimensions from scale drawings. The lesson concludes with a final example, emphasizing the importance of understanding scale ratios.

What is the scale factor for an enlargement?

• Less than one

• Zero

• Equal to one

• Greater than one

In the basketball court problem, what is the scale ratio used?

• 1 inch to 10 feet

• 1 inch to 25 feet

• 1 inch to 15 feet

• 1 inch to 20 feet

How many feet does 2 inches represent in the basketball court scale problem?

• 25 feet

• 30 feet

• 20 feet

• 15 feet

What is the scale ratio for the garden layout problem?

• 1 cm to 25 m

• 1 cm to 10 m

• 1 cm to 15 m

• 1 cm to 20 m

How long is the actual garden if the drawing shows 8 cm?

• 120 meters

• 140 meters

• 160 meters

• 180 meters

What is the scale ratio for the advertisement picture enlargement?

• 1:3

• 1:5

• 1:2

• 1:4

If the original picture is 0.25 inches, what is the enlarged size?

• 1 inch

• 2 inches

• 4 inches

• 3 inches

In the student scale problem, what is the scale ratio used?

• 5 feet per inch

• 4.5 feet per inch

• 7 feet per inch

• 6 feet per inch

What is the actual size of an object that is 3/8 inch in the student scale problem?

• 12 feet

• 16.5 feet

• 13.5 feet

• 15 feet

Will the object fit through a 10-foot door in the student scale problem?

• Only if rotated

• Only if resized

• No

• Yes