CFA: Similar Figures & Indirect Measure

Front

What are similar figures?

Back

Similar figures are shapes that have the same shape but may differ in size. Their corresponding angles are equal, and their corresponding sides are proportional.

Front

What does it mean for triangles to be similar by SSS?

Back

Triangles are similar by SSS (Side-Side-Side) if the lengths of their corresponding sides are in proportion.

Front

What does it mean for triangles to be similar by SAS?

Back

Triangles are similar by SAS (Side-Angle-Side) if two sides of one triangle are proportional to two sides of another triangle, and the included angles are equal.

Front

In similar polygons, what is true about corresponding sides?

Back

In similar polygons, corresponding sides are proportional.

Front

In similar polygons, what is true about corresponding angles?

Back

In similar polygons, corresponding angles are congruent.

Front

What is the scale factor in similar figures?

Back

The scale factor is the ratio of the lengths of corresponding sides of two similar figures.

Front

How do you determine if two triangles are similar?

Back

You can determine if two triangles are similar by checking if they satisfy the SSS, SAS, or AA (Angle-Angle) criteria.

Front

What is 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 gymnasium is 96 feet long and 76 feet wide, what is its area?

Back

The area of the gymnasium is 96 feet × 76 feet = 7296 square feet.

Front

How do you find the area of a scaled-down blueprint of a figure?

Back

To find the area of a scaled-down blueprint, first determine the scale factor, then apply the formula: Area on blueprint = (Scale Factor)² × Actual Area.