STAAR Review: Perimeter- 3.7 B

Front

What is perimeter?

Back

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

Front

How do you calculate the perimeter of a rectangle?

Back

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

Front

If a square has a perimeter of 20 units, what is the length of one side?

Back

5 units (since Perimeter = 4 x side length).

Front

What is the perimeter of a triangle with sides measuring 5 cm, 7 cm, and 10 cm?

Back

22 cm (5 + 7 + 10 = 22).

Front

A rectangular garden has a length of 12 m and a width of 5 m. What is its perimeter?

Back

34 m (Perimeter = 2(12 + 5) = 34).

Front

If a shape has a perimeter of 30 cm and one side is 10 cm, what is the total length of the other three sides?

Back

20 cm (30 - 10 = 20).

Front

What is the perimeter of a square with each side measuring 6 cm?

Back

24 cm (Perimeter = 4 x 6 = 24).

Front

How do you find the length of one side of a triangle if you know the perimeter and the lengths of the other two sides?

Back

Subtract the sum of the known sides from the total perimeter.

Front

If a rectangular card has a length of 8 cm and a width of 3 cm, what is its perimeter?

Back

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

Front

What is the perimeter of a shape with sides measuring 4 cm, 4 cm, and 8 cm?

Back

16 cm (4 + 4 + 8 = 16).