Flashcardizz: 7.3 Area & Perimeter

Front

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

Back

Perimeter = 2(length + width)

Front

What is the definition of area?

Back

The space inside an object.

Front

How do you calculate the area of a rectangle?

Back

Area = length × width.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2(base × height).

Front

What is the perimeter of a square with a side length of 5 units?

Back

Perimeter = 4 × 5 = 20 units.

Front

How do you find the area of a polygon using coordinates?

Back

Use the shoelace formula or divide the polygon into triangles.

Front

What is the formula for the area of a circle?

Back

Area = πr², where r is the radius.

Front

If a rectangle has a length of 10 units and a width of 4 units, what is its area?

Back

Area = 10 × 4 = 40 square units.

Front

What is the perimeter of a triangle with sides measuring 3, 4, and 5 units?

Back

Perimeter = 3 + 4 + 5 = 12 units.

Front

What does the term 'perimeter' refer to?

Back

The total distance around the outside of a shape.