KS2 Primary Maths Age 9-13 - Algebra Quadrilaterals: - Explained

The video tutorial explains how to find the perimeter of a quadrilateral using algebraic expressions. It begins by defining a quadrilateral and the concept of perimeter. The tutorial then demonstrates how to simplify the expression for the perimeter by collecting like terms. Finally, it shows how to solve for the variable X when the perimeter is given as 140 centimeters, resulting in X being 14.6 centimeters.

What is the definition of a quadrilateral?

• A five-sided shape

• A four-sided shape

• A three-sided shape

• A six-sided shape

How do you simplify the expression for the perimeter of a quadrilateral?

• By subtracting all terms

• By collecting like terms

• By dividing all terms

• By multiplying all terms

What is the simplified expression for the perimeter of the given quadrilateral?

• 8X + 4

• 8X - 4

• 10X - 6

• 10X + 6

If the perimeter of the quadrilateral is 140 cm, what equation would you set up to find X?

• 8X + 4 = 140

• 8X - 4 = 140

• 10X - 6 = 140

• 10X + 6 = 140

What is the value of X when the perimeter is 140 cm?

• 15.0

• 14.6

• 14.4

• 14.0