Flashcardizz: 7.3 Area & Perimeter

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

How do you calculate the perimeter of a polygon?

Back

Perimeter is the sum of the lengths of all sides.

Front

What is the area of a triangle?

Back

Area = 1/2 × base × height.

Front

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

Back

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

Front

Find the area of a rectangle with length 5 units and width 3 units.

Back

Area = 5 × 3 = 15 square units.

Front

What is the perimeter of a rectangle with length 10 units and width 4 units?

Back

Perimeter = 2 × (length + width) = 2 × (10 + 4) = 28 units.

Front

How do you find the area of a polygon given its vertices?

Back

Use the shoelace formula or divide the polygon into triangles.

Front

What is the perimeter of a triangle with sides measuring 5, 7, and 10 units?

Back

Perimeter = 5 + 7 + 10 = 22 units.

Front

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

Back

Area = side × side = 4 × 4 = 16 square units.

Front

How do you find the area of a trapezoid?

Back

Area = 1/2 × (base1 + base2) × height.