Distance, Midpoint, Area & Perimeter on the Coordinate Plane

Front

What is the formula for the area of a triangle?

Back

Area = (1/2) * base * height

Front

What is the formula for the area of a rectangle?

Back

Area = length * width

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2 * (length + width)

Front

What does the slope of a line represent?

Back

The slope represents the rate of change of y with respect to x.

Front

What are opposite reciprocal slopes?

Back

Two slopes are opposite reciprocals if the product of the slopes is -1.

Front

If two lines are parallel, what can be said about their slopes?

Back

Their slopes are equal.

Front

If two lines are perpendicular, what can be said about their slopes?

Back

Their slopes are opposite reciprocals.

Front

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

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

How do you calculate the distance between two points (x1, y1) and (x2, y2)?

Back

Distance = √((x2 - x1)² + (y2 - y1)²)