Evidence Check Area and Perimeter of Polygons

Front

What is Perimeter?

Back

Perimeter is the total distance around the outside of a polygon. It is calculated by adding the lengths of all the sides.

Front

What is Area?

Back

Area is the amount of space inside a polygon. It is measured in square units and can be calculated using different formulas depending on the shape.

Front

How do you calculate the perimeter of a rectangle?

Back

To calculate the perimeter of a rectangle, use the formula: P = 2(length + width).

Front

How do you calculate the area of a rectangle?

Back

To calculate the area of a rectangle, use the formula: A = length × width.

Front

What is the formula for the area of a triangle?

Back

The formula for the area of a triangle is: A = 1/2 × base × height.

Front

If a square has a side length of 4 cm, what is its perimeter?

Back

The perimeter of the square is 16 cm (P = 4 sides × 4 cm).

Front

If a triangle has a base of 10 units and a height of 5 units, what is its area?

Back

The area of the triangle is 25 square units (A = 1/2 × 10 × 5).

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around the shape.

Front

How do you find the area of a polygon with irregular sides?

Back

To find the area of an irregular polygon, divide it into simpler shapes (like triangles and rectangles), calculate their areas, and then sum them up.

Front

What is the unit of measurement for area?

Back

The unit of measurement for area is square units (e.g., cm², m²).