1. What shapes
do you see?

4. The Trapezoid
Area & Perimeter

5. Trapezoid Parallel sides What is a trapezoid?
A quadrilateral with exactly 1 pair of parallel sides
Parallel
sides

6. Trapezoid
Perimeter
ADD UP ALL THE SIDES!!!
5 m
3 m
3 m
4 m

7. Trapezoid Parallel sides What is a trapezoid?
A quadrilateral with exactly 1 pair of parallel sides
Parallel
sides

8. What do we mean by parallel?
Trapezoid
What do we mean by parallel?
These lines will eventually intersect. (cross)
These lines will never intersect. They are PARALLEL

9. Trapezoid
Where do we see parallel lines?

10. Trapezoid bases. base 1 base 1 base 2 base 2
We call the parallel sides the…
bases.
base 1
base 1
base 2
base 2

11. Label the bases of each trapezoid.

12. How do we measure height?
7 ft 6 in
8 ft

13. Trapezoid
Height
So if we see a trapezoid, which measurement represents the HEIGHT?
2.5 ft
4 ft

14. Trapezoid
Area
= base 1
= base 2
= height

15. 7 ft
5 ft
4 ft
5 ft
3 ft

16. 15 ft
7 ft
6 ft
7 ft
9 ft

17. 3 cm
10 cm
8 cm
10 cm
13 cm

18. 10 cm
4 cm
16 cm
8 cm 4 16 + 8 2
10 cm 20 8 80 10 8 = 2
square cm

19. 8.7 ft
7 ft
6.5 ft
7 ft
4.2 ft