Scaling Review

Front

What is scaling in geometry?

Back

Scaling in geometry refers to resizing a shape or object by a certain factor, which can either enlarge or reduce its dimensions.

Front

What is a scale factor?

Back

A scale factor is a number that scales, or multiplies, some quantity. It determines how much larger or smaller a figure will be when it is scaled.

Front

What does a scale factor of 1 mean?

Back

A scale factor of 1 means that the object remains the same size; it creates an exact copy of the original.

Front

How do you calculate the area of a rectangle?

Back

The area of a rectangle is calculated by multiplying its length by its width (Area = Length × Width).

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its area?

Back

The area is 40 square cm (10 cm × 4 cm = 40 cm²).

Front

What is the relationship between angles in similar figures?

Back

In similar figures, corresponding angles are equal.

Front

How do you find the height of a building in a scale drawing?

Back

To find the height in a scale drawing, divide the actual height by the scale factor.

Front

If 1/4 inch represents 10 feet in a scale drawing, how many inches represent 360 feet?

Back

9 inches (360 feet ÷ 10 feet per 1/4 inch = 36 quarters; 36 quarters × 1/4 inch = 9 inches).

Front

What is the formula for finding the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated by adding the lengths of all sides (Perimeter = 2 × (Length + Width)).

Front

What is an enlargement in scaling?

Back

An enlargement is a transformation that increases the size of a figure by a scale factor greater than 1.