ACT Math Practice

Front

What is the greatest common factor (GCF)?

Back

The GCF of two or more numbers is the largest number that divides all of them without leaving a remainder.

Front

How do you find the midpoint of a line segment with endpoints (x1, y1) and (x2, y2)?

Back

The midpoint is calculated using the formula: ((x1 + x2)/2, (y1 + y2)/2).

Front

What is a ratio?

Back

A ratio is a relationship between two numbers indicating how many times the first number contains the second.

Front

How do you simplify a ratio?

Back

To simplify a ratio, divide both terms by their greatest common factor.

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter P of a rectangle is given by P = 2(length + width).

Front

What are parallel lines?

Back

Parallel lines are lines in a plane that never meet; they are always the same distance apart.

Front

What is the relationship between angles formed by parallel lines and a transversal?

Back

When a transversal crosses parallel lines, corresponding angles are equal, and alternate interior angles are equal.

Front

How do you calculate the area of a rectangle?

Back

The area A of a rectangle is calculated using the formula: A = length × width.

Front

What is the difference between a line segment and a line?

Back

A line segment has two endpoints and a finite length, while a line extends infinitely in both directions.

Front

What is the formula for the area of a triangle?

Back

The area A of a triangle is given by A = (base × height) / 2.