Perimeter and Area Flashcard

Front

What is the perimeter of a rectangle?

Back

The perimeter of a rectangle is the total distance around the rectangle, calculated using the formula: 2 * (length + width).

Front

What is the area of a rectangle?

Back

The area of a rectangle is the amount of space inside it, calculated using the formula: length * width.

Front

What is the formula to find the area of a rectangle with length 8 units and width 4 units?

Back

Area = length * width = 8 * 4 = 32 square units.

Front

If the perimeter of a rectangle is 30 units and the length is 10 units, how do you find the width?

Back

Use the formula for perimeter: P = 2 * (length + width). Rearranging gives width = (P/2) - length.

Front

What is the length of the missing side if one side is 5 cm and the total perimeter is 20 cm?

Back

The missing side is 5 cm, calculated as follows: 20 = 2 * (5 + missing side) => missing side = 5 cm.

Front

What is the area of a rectangle with length 10 units and width 3 units?

Back

Area = length * width = 10 * 3 = 30 square units.

Front

What is the perimeter of a square with side length 4 cm?

Back

Perimeter = 4 * side length = 4 * 4 = 16 cm.

Front

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

Back

Area = side length * side length = 4 * 4 = 16 square cm.

Front

How do you calculate the area of a triangle?

Back

Area = (base * height) / 2.

Front

What is the formula for the perimeter of a square?

Back

Perimeter = 4 * side length.