This document provides instructions and formulas for calculating the perimeter and area of rectangles and squares. It includes the objectives of finding perimeter and area using formulas, provides the relevant formulas, and includes example perimeter and area word problems to solve. Key information covered includes the definitions of perimeter and area, the perimeter and area formulas for rectangles and squares, and example activities applying the formulas.

1. Mrs. Brenda Rodriguez
5th and 6th Grade Math

2. Menu
• Objectives
• Instructions
• Theme: “Perimeter and Area”
• Activities
• Glossary

3. Objective
• Finding the perimeter and area of a
rectangle and square using formulas.

4. Instructions
• Find the perimeter of rectangles and squares with
the given dimensions.
• Find the area of rectangles and squares with the
given dimensions.

5. • Perimeter is the distance around a figure.
For a figure with straight sides, the
perimeter is the sum of the lengths of the
sides. Perimeter is measured in linear
units such as ft., cm, m, Km, in.
• Area is the number of square units needed
to cover a figure. Area is measured in
square units such as square centimeters
(cm2) or square inches (in2).

6. Perimeter Formulas
• The perimeter of some polygons can be given
as a formula.
• The sides of a square are the same lengths.
The perimeter equals 4 time the lengths of a
side(s).
• Perimeter of a square: s + s + s + s = 4 x s =
P= 4s s
s s
s

7. • The opposite sides of a rectangle are the same
length. The perimeter equals 2 times the length (l)
plus 2 times the width (w).
• Perimeter of a rectangle:
P = 2(l + w)
l
w = w
width
I = length

8. Perimeter Activity
• The Parks Committee wants to choose the land
with the largest perimeter. Find the one they
should choose.
w = 110 ft.
l = 240 ft. s = 165 ft.
Park A Park B

9. • The area of a shape is the amount of space
it covers.
• One way to measure the area of a shape is
to count the number of squares units it
covers.
Area Formulas

10. • To find the area of a square or rectangle using
formulas is to multiply the length by the width.
• Area of a square = side x side = s x s = s2
• Area of a rectangle = length x width = l x w = lw

11. Area Activity
• Find the area of the shapes:
10 cm
3 cm
A. 13 cm2 10 ft.
B. 26 cm 2
C. 30 cm2
A. 10 ft2
B. 100 ft2
C. 20 ft2

12. • Polygon – A geometric figure made up of three or
more line segments that intersect only at their
endpoints.

13. Answer

14. Answer

15. Answer

16. Answer