Area and Perimeter Flashcard

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 = 2π(radius) or Circumference = π(diameter)

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 find the area of a composite shape?

Back

Divide the shape into simpler shapes, find the area of each, and then sum them up.

Front

What units are used to measure area?

Back

Square units (e.g., ft², in², yd², mi²)

Front

What units are used to measure perimeter?

Back

Linear units (e.g., ft, in, yd, mi)