Scale Drawings and Proportions

The video tutorial explains how to solve scale drawing problems using proportions. It covers two examples: calculating the real-life distance between two cities based on a map scale and determining the dimensions of a living room in an architectural drawing. The tutorial demonstrates the use of cross multiplication to find unknown values in these problems.

What is the primary method used to solve scale drawing problems?

• Applying proportions

• Using a calculator

• Using a ruler

• Guessing the answer

In the map scale example, what does 1 inch on the map represent?

• 25 miles

• 15 miles

• 20 miles

• 10 miles

How far apart are two cities in real life if they are 3.4 inches apart on the map?

• 45 miles

• 48 miles

• 54 miles

• 51 miles

What mathematical operation is primarily used to solve the proportion problems?

• Cross multiplication

• Addition

• Subtraction

• Multiplication

In the map problem, what is the result of multiplying 15 by 3.4?

• 50

• 45

• 52

• 51

What is the scale used in the architectural drawing problem?

• 4 inches to 7 feet

• 2 inches to 5 feet

• 1 inch to 3 feet

• 3 inches to 6 feet

What is the first step in solving the architectural drawing problem?

• Measuring the drawing

• Estimating the size

• Finding the scale

• Calculating the area

If the living room is 15 feet long in real life, how long is it on the drawing?

• 5 inches

• 6 inches

• 7 inches

• 8 inches

What is the width of the living room on the drawing if it is 18 feet wide in real life?

• 6.5 inches

• 7.0 inches

• 7.2 inches

• 7.5 inches

How do you find the dimensions on the drawing from real-life measurements?

• By subtracting the scale

• By using cross multiplication

• By dividing by the scale

• By adding the scale