Area and Perimeter of Irregular Figures

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

How do you calculate 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

How do you find the perimeter of a triangle?

Back

Perimeter = sum of the lengths of all three sides.

Front

What is a composite shape?

Back

A shape made up of two or more simple shapes.

Front

How do you calculate the area of a composite shape?

Back

Find the area of each simple shape and sum them up.

Front

What is the formula for the area of a circle?

Back

Area = π × radius².

Front

How do you calculate 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; perimeter measures the distance around a shape.

Front

What units are used to measure area?

Back

Square units (e.g., square meters, square inches).