Geometry Test Review (re)

Front

What is the midpoint formula for finding the midpoint of a line segment with endpoints (x1, y1) and (x2, y2)?

Back

The midpoint M is given by M = ((x1 + x2)/2, (y1 + y2)/2).

Front

How do you find the other endpoint of a line segment if one endpoint and the midpoint are known?

Back

Use the formula: (x2, y2) = (2 * midpoint_x - x1, 2 * midpoint_y - y1).

Front

What is the inequality solution for -2(x + 2) < 14?

Back

x > -9.

Front

What is the slope of a line perpendicular to a line with slope m?

Back

The slope of the perpendicular line is -1/m.

Front

How do you write the equation of a line in slope-intercept form?

Back

The equation is y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the distance formula for finding the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = sqrt((x2 - x1)² + (y2 - y1)²).

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2(length + width).

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the definition of a line segment?

Back

A line segment is a part of a line that has two endpoints.