Starr Review

Front

What does it mean for two triangles to be similar?

Back

Two triangles are similar if their corresponding angles are equal and their corresponding sides are in proportion.

Front

If triangle ABC is similar to triangle DEF, and the length of side AB is 10 cm and side DE is 5 cm, what is the ratio of their sides?

Back

The ratio of their sides is 2:1.

Front

How do you find the area of a triangle?

Back

The area of a triangle can be found using the formula: Area = 1/2 * base * height.

Front

What is the formula for the area of a rectangle?

Back

Area = length * width.

Front

If the area of a rectangle is 48 square units and the length is 8 units, what is the width?

Back

The width is 6 units.

Front

What is the sum of the interior angles of a pentagon?

Back

The sum of the interior angles of a pentagon is 540 degrees.

Front

If one angle of a triangle is 90 degrees and another is 45 degrees, what is the third angle?

Back

The third angle is 45 degrees.

Front

What is the relationship between the angles of similar polygons?

Back

The corresponding angles of similar polygons are equal.

Front

How do you calculate the area of a shaded region?

Back

To find the area of a shaded region, subtract the area of the unshaded part from the total area.

Front

What is the formula for the area of a circle?

Back

Area = π * radius².