Area and Population Density

Front

What is the formula for the area of a rectangle?

Back

Area = 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 area of a circle?

Back

Area = π × radius²

Front

How do you calculate the area of a composite shape?

Back

Divide the shape into simpler shapes, calculate each area, and sum them up.

Front

What is population density?

Back

Population density is the number of people living per unit of area, typically expressed as people per square kilometer.

Front

How do you calculate population density?

Back

Population Density = Total Population / Total Area

Front

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

Back

Area = 5 units × 5 units = 25 units²

Front

If a rectangle has a length of 8 units and a width of 3 units, what is its area?

Back

Area = 8 units × 3 units = 24 units²

Front

What is the area of a circle with a radius of 3 units?

Back

Area = π × (3 units)² ≈ 28.27 units²

Front

What is the area of a triangle with a base of 6 units and a height of 4 units?

Back

Area = 1/2 × 6 units × 4 units = 12 units²