ppt

1. Area
&
Perimeter

2. SHAPE OVERVIEW
Rectangle
Triangle
Hexagon
Trapezoid
Square
Parallelogram
Pentagon
Circle

3. Perimeter
To calculate the perimeter of an object or space, you will
need to add up all of the outside measurements.
2 + 4 + 2 + 4 = ________
2
4

4. Tricky Perimeters
(Look carefully.)
You will need to
remember
which sides to
add and the
values for
each side.
2
2
2
2
3
2
2 2

5. AREA
 You will use different formulas for each
type of shape when finding area
 Each answer will require you to use the
measurement given, and it will always be
squared…ex.) 9 ft.2

6. Area of
a Rectangle
A = L x W
The area formula for a rectangle is length x width
L
W

7. Find the area
of these rectangles.
1
2
2
3
3
4
5
6

8. Find the area of these squares.
5
12
25
8
16

9. AREA OF A PARALLELOGRAM
 A = B x H
 (base x height)
H
B

10. Find the area of these
parallelograms.
4
7
14
19
2
3.5

11. Area of a Triangle
Finding the area of a triangle is different.
A = ½ (B x H)
H
B

12. Find the area of these triangles.
5
7
3
4
2
3
6
8

13. AREA OF A TRAPEZOID
 A = ½ H (b1 + b2)
 ½ Height (base 1 + base 2)
B2
H
B1

14. Find the area of the trapezoids.
31
23
12
14
9
16