Adding Expressions for Perimeter

Write a linear expression for the perimeter of the figure. Then find the perimeter of the figure if x = 3.

• 6x − 8; 10 yd

• 10x − 6; 24 yd

• 16x − 8; 40 yd

• 14x − 8; 34 yd

Write an expression for the perimeter of the figure.

• 13u + 1

• 11u + 19

• 13u + 19

• The perimeter can't be found because we don't know what u is.

Write a linear expression for the perimeter of the figure.

• 6x − 8

• 10x − 6

• 16x − 8

• 14x − 8

The expression (8x + 4) inches represents the perimeter of a rectangle whose width is (3x − 4) inches. Find the length of the rectangle if x = 2.

• 7 in.

• 9 in.

• 8 in.

• 10 in.

^{The perimeter of the
 triangle is 10x+20. Find the length of the missing side}

• 6x+10

• 15x+30

• 5x+10

• 5x-10

Write a simplified expression for the perimeter of a triangle with side lengths of: (5x-3) yards, (5x-3) yards, and (6x-2) yards.

• (6x − 8) yards

• (10x − 6) yards

• (16x − 8) yards

• (14x − 8) yards

• None

Write and simplify an expression to represent the perimeter of a triangle with the side lengths of: (x+4) feet, (2x+1) feet, and (3x-2) feet.

• (4x + 3) feet

• (6x + 5) feet

• (5x - 3) feet

• (6x + 3) feet

• None

Write an expression in simplest form for the perimeter of the figure.

• (a) + (2a + 3) + (3a - 1)

• 5a + 2

• 6a + 2

• 7a

Write an algebraic expression in simplest form for the perimeter of a rectangle with side lengths (-3x + 1) and

(2x - 5)

• 1x + 6

• -x - 4

• -x + 4

• -x - 6