Combining Like Terms in Area and Perimeter Problems

What is the first step in organizing your notebook for this lesson?

• Start with solving the area problems

• Write down the questions 1 to 6

• Draw a rectangle and label its sides

• Cut and glue sections one to three on one side

What is the area of a rectangle with length 2p and width 9?

• 9p

• 18p

• 18

• 11p

How do you find the area of a rectangle?

• Length times width

• Length plus width

• Width divided by length

• Length minus width

What is the area of a rectangle with length 5 and width 3h?

• 8

• 15

• 8h

• 15h

How do you calculate the perimeter of a rectangle?

• Subtract the shortest side from the longest

• Multiply all sides

• Add the length of all sides

• Divide the total length by two

What is the perimeter of a rectangle with sides 7z^2 - 4z + 3 and 7 + 3z + 2z^2?

• 18z^2 + 2z + 20

• 36z^2 + 4z + 6

• 20z^2 - 2z + 18

• 18z^2 - 2z + 20

How are like terms combined in algebraic expressions?

• By dividing one by the other

• By multiplying their coefficients

• By adding their coefficients

• By adding their exponents

What is the formula for the perimeter of a triangle?

• Sum of all three sides

• Twice the base plus twice the height

• Base plus height

• Base times height

What is the perimeter of a triangle with sides 3ab + 4a^2, 6a^2 - 5ab, and 2a^2?

• 12a^2 + 2ab

• 11a^2 + 3ab

• 10a^2 - ab

• 12a^2 - 2ab

What should you do after completing questions five and six?

• Move on to the next lesson

• Take a break

• Start an activity on the computer

• Check your answers with a friend