Perimeter Algebraic Expressions

What is the perimeter of the rectangle? Write an expression to represent the perimeter.

• 5x + 5x+ x+3 + x+3

• 5x+x+3

• 5x + x+3 + 5x

• (5x)(x+3)

Find the perimeter of the rectangle.

Remember to combine like terms!

• 16x + 20

• 8x + 10

• 80x

• 18x

Which expression represents the perimeter of the triangle?

• 4x + 4y + 5

• 6xy + 7

• 6x + 2y + 5

• 10xy + x + 2y

What is the perimeter of this figure?

The perimeter of the quadrilateral is: ​ ​ ​ ​ ​

Mathematical Equivalence

ON

A rectangle has width (2x + 3) and length (2x - 4). What is the perimeter of the rectangle?

(HINT: Perimeter means add all the sides together. Just do not forget how many sides a rectangle has).

• 4x - 12

• 4x - 1

• 8x - 2

• 4x² - 2x - 12

Which expression represents the perimeter?

• 3x + 3

• 4x + 3

• 4x + 6

• 6x + 6

What is the perimeter of the rectangle (combine like terms)

• 5x + 7

• 10x + 4

• 12x

• 15x + 12

Find and simplify an expression representing the perimeter of a square with a side length of 15-2x.

• 30-4x

• 60-8x

• 17x

• 68x

The three lengths of an isosceles triangle are 23g - 5, 16g + 7 and 14g + 12. What is the perimeter of the triangle in terms of g?

• 52g + 13

• 54g + 17

• 55g - 12

• 53g + 14