Perimeter of Polygons

Front

What is the definition of perimeter?

Back

The perimeter is the total distance around the outside of a polygon.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

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

Back

20 cm (P = 4 x side length = 4 x 5 cm).

Front

What is the formula for the perimeter of a triangle?

Back

P = side1 + side2 + side3.

Front

If a rhombus has a side length of 3 cm, what is its perimeter?

Back

12 cm (P = 4 x side length = 4 x 3 cm).

Front

What is the perimeter of a trapezoid with bases of 10 m and 6 m, and non-parallel sides of 4 m each?

Back

24 m (P = base1 + base2 + side1 + side2 = 10 m + 6 m + 4 m + 4 m).

Front

What is the perimeter of a polygon with 5 sides, each measuring 4 cm?

Back

20 cm (P = 5 x side length = 5 x 4 cm).

Front

What is the perimeter of a circle called?

Back

Circumference.

Front

How do you find the perimeter of a regular polygon?

Back

Multiply the length of one side by the number of sides (P = side length x number of sides).

Front

What is the perimeter of a rectangle with a length of 10 cm and a width of 4 cm?

Back

28 cm (P = 2(length + width) = 2(10 cm + 4 cm)).