Area Intro: Third Grade

Area of Rectangular Figures

by: Mr. Medina

Area is the space inside a figure.

What is area?

Area is measured in square units.

​​How is area measured?

Area is the space inside a figure and is measured in square units. On the other hand, perimeter is the space around the figure and it is measured in linear units or just units.

How is area different from perimeter?

Multiple Choice

Amazon wants to put a fence around their warehouse. They must first find the ____

-----------------------

Amazon quiere poner un verja alrededor de la bodeja, primero debe encontrar el/la ______

• area

  área

• perimeter

  perímetro

• edge

  arÍsta

• apex

  ápice

Multiple Choice

Which of the following is likely to be the measurement of the perimeter of the Amazon warehouse?

-----------

¿Cuál de los siguientes podría ser la medición del perímetro de la bodega de Amazon?

• 700 meters

  (metros)

• 700 square meters

  (metros cuadrados)

• 700

Multiple Choice

Amazon found out that their warehouse floor area measures ______.

-------------------

Amazon se encontró que el área del piso de su bodega mide _________

• 30,000 meters

  (metros)

• 30,000

• 30,000 meters squared

  (metros cuadrados)

Match

Match the area to the figure.

Paréa el área a la figura.

6 u²

12 u²

10 u²

20 u²

9 u²

• 6 u²

• 12 u²

• 10 u²

• 20 u²

• 9 u²

Multiple Choice

Amazon wants to know how much floor space they have inside their warehouse, so they better find the ___ of the warehouse.

-------------------------------

Amazon quiere saber cuánto espació cubre el piso de su bodeja, por lo tanto, más vale que encuentren el/la _______ de la bodega.

• edge

  árista

• perimeter

  perímetro

• area

  área

• apex

  ápice

​​Area of a rectangle

The area of a rectangle can be found by multiplying: Area = Length x Width

---

Example: L = 2 cm W = 5 cm , then:

A = L x W

Area = 2 x 5

Area = 10 cm²

Remember: In a square all sides are equal.

So the area can be found by multiplying one side times itself:

Area = S x S

----

Example: S = 5 cm

A = S x S

A = 5 X 5

A = 25 cm²

​​Area of a Square:

Match

Match the following

36

4

64

81

144

• 36

• 4

• 64

• 81

• 144

Match

Match the following

35

18

30

32

54

• 35

• 18

• 30

• 32

• 54