Perimeter and Algebra

What is the perimeter of this rectangle?

• 21 units

• 12 units

• 3 units

• None of the above.

Farmer Bob needs to build a fence for his chickens.  He wants to build a fence around is 40 feet long and 20 feet wide.  How many feet of fence does he need to buy? (Hint: top matches the bottom; left matches right!)

• 800 feet

• 120 feet

• 60 feet

What is the perimeter of the rectangle? (Hint: top matches the bottom, left matches the right!)

• 28 sq feet

• 28 feet

• 48 feet

• 48 sq feet

What is the perimeter of this rectangle? 

• 60 in

• 34 cm

• 60 cm

• 34 in

The side lengths of a triangle and a square are shown in the diagram.

The perimeter of the triangle is equal to the perimeter of the square. What is the value of x?

Tags

8.8.C

Determine the perimeter of the rectangle.

• 6xy - 5

• 12xy +21

• 12xy - 5

• 6xy - 21

Which of the following algebraic expressions best represents the perimeter of the given polygon?

• 5x + 13

• 7x + 11

• 6x + 8

• 7x + 12

What is the perimeter of the rectangle above?

• 48x - 6

• 24x - 6

• 48x - 12

• 24x - 12

What is the perimeter, in units, of the model?

• 32x + 12 units

• 46x + 25 units

• 50x + 11 units

• 64x +24 units

What is the perimeter expression for these algebra tiles?

• 6x + 2

• 6x + 1

• 5x + 2

• 5x + 1