Area & Perimeter Coordinate Plane

Front

What is the formula for calculating the area of a rectangle?

Back

Area = length × width.

Front

How do you find the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Front

What is the area of a square with a side length of 4 units?

Back

Area = 4 × 4 = 16 square units.

Front

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

Back

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

Front

What are the coordinates of the midpoint between points (2, 3) and (4, 7)?

Back

Midpoint = ((2 + 4)/2, (3 + 7)/2) = (3, 5).

Front

What is the area of a triangle with a base of 5 units and a height of 3 units?

Back

Area = (1/2) × base × height = (1/2) × 5 × 3 = 7.5 square units.

Front

How do you reflect a point (x, y) across the y-axis?

Back

The reflected point is (-x, y).

Front

What is the area of a quadrilateral with vertices at (0,0), (0,2), (3,2), and (3,0)?

Back

Area = length × width = 3 × 2 = 6 square units.

Front

What is the perimeter of a rectangle with length 5 units and width 3 units?

Back

Perimeter = 2 × (5 + 3) = 16 units.

Front

If point A is at (1, 2), what are the coordinates of A' if reflected across the x-axis?

Back

A' = (1, -2).