Exploring Scale Drawings in Math 7

The video tutorial covers the concept of scale drawings and scale factors, explaining how to scale objects up or down using these factors. It discusses the use of proportions, fractions, and decimals in scaling calculations and applies these concepts to solve word problems. The tutorial also explores real-life applications of scale models and maps, and demonstrates how to create scale drawings using graph paper.

Which of the following is NOT a type of scale mentioned in the video?

• Temperature scale

• Dragon scale

• Fish scale

• Weight scale

If a triangle with sides 6, 9, and 10 is scaled by a factor of 2, what will be the length of the side originally measuring 6?

• 15

• 12

• 18

• 20

What is the new length of a side measuring 10 when scaled by a factor of 1/3?

• 2

• 3.33

• 3

• 10/3

When scaling a side of length 6 by a factor of 1.75, what is the new length?

• 15

• 9

• 12

• 10.5

In a word problem involving a model car, if the real car is 63 inches wide and the scale is 1:18, what is the width of the model car?

• 3.75 inches

• 3.5 inches

• 3 inches

• 4 inches

If 1.5 cm on a map represents 400 km in real life, what is the real-life distance for 2.5 cm on the map?

• 1000 km

• 800 km

• 1200 km

• 600 km

What is the purpose of using proportions in word problems involving scale models?

• To estimate the cost of the model

• To find the actual dimensions of the model

• To determine the color of the model

• To calculate the weight of the model

What is the real-life width of a living room that measures 10 units on graph paper, if each unit represents 5 feet?

• 25 feet

• 50 feet

• 5 feet

• 10 feet

How many units on graph paper represent 15 feet in real life, if 1 unit equals 5 feet?

• 4 units

• 3 units

• 5 units

• 2 units

If a room is 18.5 feet wide in real life, how many units would it be on graph paper where 1 unit equals 5 feet?

• 3.7 units

• 4 units

• 3.5 units

• 3 units