SC Geo - Scale Drawings and Angles

Front

What is the definition of scale factor?

Back

The scale factor is the ratio of a length of the image to the corresponding length on the original figure.

Front

How do you calculate the height of an actual building from a scale model?

Back

To calculate the height of the actual building, multiply the height of the scale model by the scale ratio (e.g., if the scale is 1 inch = 150 feet, and the model is 6.5 inches tall, then the actual height is 6.5 * 150 = 975 feet).

Front

What are complementary angles?

Back

Complementary angles are two angles whose measures add up to 90 degrees.

Front

If the scale factor is 5, what type of transformation does this represent?

Back

An enlargement.

Front

What is the relationship between scale drawings and real-life objects?

Back

Scale drawings represent real-life objects in a proportional manner, allowing for accurate representation of size and dimensions.

Front

How do you find the scale factor between two similar figures?

Back

To find the scale factor, divide the length of a side of one figure by the corresponding side of the other figure.

Front

What is the formula for finding the area of a shape when using a scale factor?

Back

If the scale factor is k, the area of the scaled shape is k^2 times the area of the original shape.

Front

What is the difference between enlargement and reduction in scale drawings?

Back

Enlargement increases the size of the figure while maintaining proportions, whereas reduction decreases the size of the figure while maintaining proportions.

Front

How do you convert measurements from a scale drawing to actual measurements?

Back

Multiply the measurements in the scale drawing by the scale factor to obtain the actual measurements.

Front

What is the significance of angles in scale drawings?

Back

Angles in scale drawings must remain consistent to accurately represent the shape and orientation of the object.