4th Hr : 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 calculate the perimeter of a triangle?

Back

Perimeter = side1 + side2 + side3

Front

What is a composite figure?

Back

A composite figure is a shape made up of two or more simple shapes.

Front

How do you find the area of a composite figure?

Back

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

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

How do you calculate the perimeter of a circle?

Back

Perimeter (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

What is the area of a square?

Back

Area = side × side or Area = side²