Perimeter of Polygons and Shapes

The video tutorial covers calculating the perimeter of various polygons using variables and combining like terms. It explains the process of finding the perimeter of shapes such as trapezoids, pentagons, hexagons, and rhombuses. The tutorial emphasizes the importance of combining like terms and using substitution to solve expressions. It also highlights the characteristics of different polygons and provides practical examples to illustrate the concepts.

What is the first step in finding the perimeter of a polygon?

• Subtract the longest side

• Add all sides together

• Multiply all sides

• Divide by the number of sides

When combining like terms, what must be true about the terms?

• They must have the same coefficient

• They must be fractions

• They must have the same variable

• They must be whole numbers

In the trapezoid example, what is the total of the Y terms?

• 10Y

• 6Y

• 12Y

• 8Y

What is the shape with one pair of parallel lines called?

• Square

• Trapezoid

• Pentagon

• Rectangle

What is the perimeter of a trapezoid with sides 5Y, 1Y, 6, and 2?

• 10Y + 6

• 12Y + 6

• 10Y + 8

• 8Y + 6

What is the perimeter of a trapezoid with sides 5Y, 1Y, and 6?

• 8Y + 6

• 12Y + 6

• 10Y + 6

• 10Y + 8

What is the perimeter of a trapezoid with sides 5Y, 1Y, and 6?

• 10Y + 6

• 12Y + 6

• 10Y + 8

• 8Y + 6

How do you handle fractions when finding the perimeter?

• Add them separately

• Convert them to decimals

• Ignore them

• Multiply them by 2

What is the perimeter of a pentagon if each side is represented by a variable?

• Add all variables

• Divide by the number of variables

• Multiply all variables

• Subtract the smallest variable

What is the perimeter of a pentagon with sides 7F, 8F, and 6F?

• 22F

• 21F

• 23F

• 24F