Algebra Tiles Area and Perimeter

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

If x = 3, what is the perimeter of a rectangle with length 2x and width 2?

Back

20 units

Front

What is the formula for the area of a rectangle?

Back

Area = length × width

Front

If x = 3, what is the area of a rectangle with length 2x and width 5?

Back

30 units²

Front

If x = 6, what is the area of a rectangle with length 2x and width 4?

Back

48 units²

Front

What does 'x' represent in algebraic expressions?

Back

A variable that can take on different values.

Front

What is the value of the expression 4x + 8 when x = 3?

Back

20

Front

If the length of a rectangle is 5 units and the width is 3 units, what is the area?

Back

15 units²

Front

What is the value of the expression 4x + 10 when x = 3?

Back

22

Front

If the perimeter of a rectangle is 24 units and the length is 10 units, what is the width?

Back

2 units