Pearson Topic 13 Perimeter

Front

What is perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you find 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 each side measuring 5 cm?

Back

20 cm (P = 4 x side length).

Front

If a triangle has sides measuring 3 cm, 4 cm, and 5 cm, what is its perimeter?

Back

12 cm (3 + 4 + 5).

Front

What do you do to find the perimeter of a shape?

Back

You mostly add the lengths of all the sides.

Front

What is the perimeter of a square with a side length of 10 feet?

Back

40 feet (P = 4 x 10).

Front

If the perimeter of a shape is 30 cm and three sides measure 10 cm each, what is the length of the missing side?

Back

0 cm (10 + 10 + 10 + 0 = 30).

Front

What is the perimeter of a rectangle with a length of 8 cm and a width of 3 cm?

Back

22 cm (P = 2(8 + 3)).

Front

If a shape has a perimeter of 50 cm and one side is 20 cm, what is the total length of the other three sides?

Back

30 cm (50 - 20 = 30).

Front

What is the perimeter of a shape with sides measuring 5 cm, 7 cm, and 8 cm?

Back

20 cm (5 + 7 + 8).