ACT Geometry Practice

Front

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

Back

The sum of the interior angles of a triangle is 180 degrees.

Front

What is the relationship between parallel lines and corresponding angles?

Back

When two parallel lines are cut by a transversal, the corresponding angles are equal.

Front

Define a transversal in geometry.

Back

A transversal is a line that intersects two or more lines at different points.

Front

What is the formula for the area of a triangle?

Back

The area of a triangle is given by the formula: Area = 1/2 * base * height.

Front

What is the Pythagorean theorem?

Back

The Pythagorean theorem states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides (a² + b² = c²).

Front

How do you find the missing angle in a triangle if two angles are known?

Back

To find the missing angle in a triangle, subtract the sum of the known angles from 180 degrees.

Front

What is the definition of complementary angles?

Back

Complementary angles are two angles whose sum is 90 degrees.

Front

What is the definition of supplementary angles?

Back

Supplementary angles are two angles whose sum is 180 degrees.

Front

What is the formula for the area of a rectangle?

Back

The area of a rectangle is given by the formula: Area = length * width.

Front

What is the definition of a right angle?

Back

A right angle is an angle that measures exactly 90 degrees.