5th Hr : Area and Perimeter of Irregular Figures

Front

What is the definition of perimeter?

Back

The perimeter is the total distance around the outside of a shape, calculated by adding the lengths of all its sides.

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

What is the formula for the perimeter of a triangle?

Back

The perimeter of a triangle is calculated by adding the lengths of all three sides: P = side1 + side2 + side3.

Front

If a shape has sides of lengths 5 cm, 10 cm, and 15 cm, what is its perimeter?

Back

The perimeter is 5 cm + 10 cm + 15 cm = 30 cm.

Front

What is the perimeter of a square with a side length of 4 cm?

Back

The perimeter is P = 4 sides × 4 cm = 16 cm.

Front

What is an irregular figure?

Back

An irregular figure is a shape that does not have equal sides or angles.

Front

How do you find the perimeter of an irregular figure?

Back

To find the perimeter of an irregular figure, measure the length of each side and add them together.

Front

What is the relationship between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it; they are different properties.

Front

If a shape has a perimeter of 50 m, what could be the lengths of its sides?

Back

Possible lengths could be 10 m, 15 m, and 25 m, as long as they add up to 50 m.

Front

What is the perimeter of a shape with sides measuring 8 cm, 6 cm, and 10 cm?

Back

The perimeter is 8 cm + 6 cm + 10 cm = 24 cm.