Flashcard #68 (Area and Perimeter)

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 rectangle?

Back

Perimeter = 2 × (length + width)

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

What is the formula for the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2 × π × radius

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around a shape.

Front

How do you calculate the area of a composite shape?

Back

Divide the shape into simpler shapes, calculate their areas, and then sum them up.

Front

What is the area of a square with a side length of 5 cm?

Back

Area = 5 cm × 5 cm = 25 cm²

Front

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

Back

Perimeter = 4 × 5 cm = 20 cm