1. Finding Area and Perimeter
Pre-algebra

2. The Tangram is made from cutting a square into 7 pieces1 3 4 2 5 7 6
Write down the mathematical name for each of the 7 pieces.
Can you state the formula for calculating all areas?
(no peeking at the formula sheet)

3. Draw a tangram on square cm paper starting with a 16 by 16 square

4. Calculate the area and perimeter of the tangram
Formulas: Perimeter – the sum of the sides
Area = bh

5. (You may use your formula sheet.)
Calculate the area and perimeter of each of the 7 pieces of the tangram
(You may use your formula sheet.)

6. Click on the rectangle to see a solution
Rearrange the 7 pieces of the tangram to make a rectangle
Click on the rectangle to see a solution
Write down the area and the perimeter of the rectangle.
Area - A = bh

7. Rearrange the 7 pieces of the tangram to make the following shapes
Trapezoid
Parallelogram
Right triangle

8. Write down the area and the perimeter of the parallelogram.
Back
Write down the area and the perimeter of the parallelogram.
Area - A = bh

9. Write down the area and the perimeter of the trapezoid.
Back
Write down the area and the perimeter of the trapezoid.
A= ½ h(b1 + b2)

10. Write down the area and perimeter of the triangle
Back
Write down the area and perimeter of the triangle
A= ½ h(b1 + b2),

11. Have extra time? Want to explore?
Try these!! Add them to your worksheet for extra credit
An animal from the story
Pentagon
Make a design of your own
Hexagon
Right Angled Triangle
Find the area and perimeter of each shape.

12. Back

13. Back

14. This Powerpoint adapted from Tangrams Area and Perimeter contributed to TES Connect by davecavill.
Retrieved from
© D Cavill
2005