Geometry 11.3 Area of Polygons

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

What is the definition of perimeter?

Back

Perimeter is the total distance around a polygon.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Front

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

Back

Area = 5 cm × 5 cm = 25 cm²

Front

What is the area of a triangle with a base of 10 cm and a height of 4 cm?

Back

Area = 1/2 × 10 cm × 4 cm = 20 cm²

Front

What is the area of a circle with a radius of 7 cm?

Back

Area = π × (7 cm)² = 49π cm²

Front

What is the relationship between area and units?

Back

Area is measured in square units (e.g., cm², m²).

Front

What is the area of a polygon?

Back

The area of a polygon is the amount of space inside the polygon.