6th Grade:Rectangle/Square

Perimeter, Area, & Volume

Rectangles/Squares

What does a Rectangle/Square look like?

OR

Rectangle Square

Formulas

PeRIMeter: Area: Volume:

P=2l+2w A=L*W V=L*W*H

What is a PeRIMeter?

•The distance around the shape•RIM around the shape

How do I find the PeRIMeter?

•2(length)+2(width)

PeRIMeter

Width

Length

Let’s Try together:

Remember:

P=2L+2W

We Know:

Length=6Width=3

Now that we know the Length and Width, we plug it into the formula:

P=2L+2WP=2(6)+2(3)

P=12+6

P=18 units

Lets Practice:Remember the Steps:

1.Identify the Length & Width

2. Plug it into the Formula3.Don’t forget your units!

Find the PeRIMeter

of the following two problems:

1. 2.

Let’s Check Our Answers:

1.

L= 7 inW= 4 inP=2L+2WP=2( 7) +2(4)P=14+8P=22 inches

2.

L=8 ftW= 8 ftP=2L + 2WP=2(8) + 2(8)P=16 + 16P=32 Ft

Area:

What is the Area?•The number of square units the figure covers

How do we find the Area?•Area=Length * Width

Let’s Try together:

A = L * W5

1 1 1 1 1

11 1

4

From the picture we see that:L= 5W= 4Now we plug these values into the formula:A=L * WA= 5 * 4

A= 20 units²Notice the # boxes!

Let’s Practice:

Find the Areas:

1. 2.

Let’s Check our Answers:

Find the Areas:1. 2.

9

2

L=6W=3A=L * WA= 6 * 3

A= 18 Units²

L=9W=2A= L* WA= 9 * 2

A= 18 Units²

Volume of a Cube:

What is Volume?•The amount of 3 dimensional space an object occupies

How do we find the Volume?•Volume= Length * Width * Height

Let’s Try together:

V=L * W * H

L-20 ftW= 8 ftH=8 ft

L=20 ft W=8 ft H= 8 ftV = L * W * HV = 20 * 8 * 8

V =1280 ft³

Let’s Practice:

Find the volume:

Hint:Use the boxes to

count the Length, Width, &

Height

Let’s Check:

Find the volume:

From the boxes we can see the

Length=3; Width=3. & Height=3So….V= Length * Width * HeightV= 3 * 3 * 3

V=27 units³

3

3

Let’s Review What

We Learned Today

With Jeopardy!!

Hint: Remember The Formulas We Learned!

Perimeter:

P=2L + 2W

Area:

A= L*W

Volume:

V= L*W*H

a) 21 cm³

b) 280 cm³

c)375 cm³

d) 145 cm³

What is the volumeof the cube below?

Excellent!!You are

Correct!!

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a)25 m²

b) 20 m²

c) 55 m²

d) 38 m²

What is the Area of

the shape below?

Excellent!!You are

Correct!!

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a) 98 cm

b) 42 cm

c) 40 cm

d) 100 cm

What is the

PeRIMeter of the

rectangle?

Excellent!!You are

Correct!!

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a) P=12 cm A=15 cm²

b) P=10 cm A=9 cm²

c) 12 cm A=8 cm²

What is the PeRIMeter

and Area of the square

below?

d) 12 cm A=9 cm²

c) 10 cm A=9 cm²

c) 12 cm A=5 cm²

cm

Excellent!!You are

Correct!!

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a) 590 cm³

b) 150 cm³

c)160 cm³

d) 140 cm³

What is the Volume of the cube below?

Excellent!!You are

Correct!!

UYou did Great, Keep up the Good Work!!

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