Scale Drawings #1

Front

What is a scale drawing?

Back

A scale drawing is a representation of an object or area that is proportionally reduced or enlarged to fit on paper, using a specific ratio to represent actual dimensions.

Front

How do you calculate the diameter of a model using a scale?

Back

To find the diameter of a model, use the formula: Model Diameter = (Actual Diameter / Scale Ratio).

Front

If a scale is 2.5 cm:0.75 mm, what is the scale ratio in cm?

Back

The scale ratio is 2.5 cm:0.075 cm (since 0.75 mm = 0.075 cm).

Front

What is the area of a room if the scale drawing shows it as 7 inches by 6 inches and the scale is 1 inch = 3 feet?

Back

Area = (7 in * 3 ft/in) * (6 in * 3 ft/in) = 21 ft * 18 ft = 378 square feet.

Front

How do you convert inches to feet in a scale drawing?

Back

To convert inches to feet, multiply the number of inches by the scale factor (in feet) for each inch.

Front

What is the actual distance if a scale drawing shows 4 inches and the scale is 1 inch = 150 miles?

Back

Actual distance = 4 in * 150 miles/in = 600 miles.

Front

If a blueprint uses a scale of 1 cm = 2 m, how long is a 10 cm line in reality?

Back

Actual length = 10 cm * 2 m/cm = 20 m.

Front

What does it mean to simplify a scale?

Back

Simplifying a scale means reducing the ratio to its smallest whole number form for easier understanding and calculation.

Front

How do you find the scale of a model?

Back

To find the scale, divide the model's dimensions by the actual dimensions (e.g., 2 ft model / 200 yd actual = 1 ft / 100 yd).

Front

What is the formula for finding the area of a rectangle in a scale drawing?

Back

Area = Length * Width, where both dimensions are converted to the same unit using the scale.