After completing the Check-your-understanding Questions, which were important for everyone to do?

Review your work and discuss: what does it mean to find the perimeter?

On the blank side, at the top of your paper, write: First name, last name, U3T2

Show how you would use a formula and substitute to find the perimeter of this rectangle:

Area (A) is the amount of space inside a flat, two-dimensional shape

Work with your seat partner to find the area of each shape. Prove your thinking in your notebooks.

Most shapes that we want to find the area of aren't drawn on a coordinate grid. For that reason, we use formulas!

Neatly write each of the five area formulas in your notebook:

Let's use our formulas to find the area of a few shapes:

To find the area of each of the 12 shapes we drew on the coordinate plane:

1. Identify the shape and write the correct area formula.

2. To get the numbers you need for the formula, calculate the distances between points.

3. Substitute and simplify.

1. In your notebook, make meaningful notes for your forgetful selves

2. CYUqs → Click the link below to open. Do your work in your notebook. Write the correct area formula and substitute. Do all 12. If you need help, get help. If someone else needs help, give help.

#5 and #6 are LEVEL 4 questions. Do your best, but feel free to work on these after you find the area of the other shapes...

Check answers as you’re working. If you make a mistake, fix it.

3. Stuck? Choose to persevere: review your thinking, try different approaches, ask for help, search