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 find 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 the area of a composite figure?

Back

The area of a composite figure is the sum of the areas of its individual shapes.

Front

How do you find the area of an irregular figure?

Back

Divide the figure into regular shapes, calculate their areas, and sum them up.

Front

What is the formula for the area of a circle?

Back

Area = π × radius²

Front

How do you find 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 it.

Front

What units are used to measure area?

Back

Square units (e.g., cm², in², m²)