Perimeter expressions

Maths

Perimeter is the total _____ of all sides of a shape. When the side lengths are written algebraically the perimeter can be written as an _______.

Which of the following is an expression for the perimeter of this shape? (Use the definitions from the lesson.)

Which of the following is an expression for the perimeter of this image? (Use the definitions from the lesson.)

Fill in the gap. We can use an established inequality to form a related ____.

If 19 > 14, which symbol would go in the gap: 7 × 19 __ 7 × 14?

If 19>14, which symbol would go in the gap: (−3) × 19 __ (−3) × 14?

Which of the following inequalities are true when n = 3 and m = -2?

Which of the following inequalities are always true when a > b?