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Surface Area and Volume. SOL 8.7 C. Washington & K. Poprik. What is a rectangular prism?. TV. Locker. Gift Box. Cereal Box. Height. Width. Length. What is a cylinder?. Pringles Container. Toilet Paper Roll. Soup Can. Radius. Made up of 2 circles & one rectangle. Height. - PowerPoint PPT Presentation
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Surface Area and VolumeSOL 8.7
C. Washington & K. Poprik
What is a rectangular prism?Cereal
BoxGift Box TV Locker
Height
Length
Width
What is a cylinder?
Soup CanToilet Paper Roll
PringlesContaine
r
Height
RadiusMade up of 2
circles & one
rectangle
Surface AreaThe sum of all the
areas of all the shapes that make up an object
The label
on a can
The wrapping paper on a present
The amount of material needed to make a can
or box
units2
Surface Area
L W
2
2lw
Surface Area
L H
2
2lh
Surface Area
W H
2
2wh
Surface Area2lw+ 2lh + 2wh
TO SOLVE:
1.Plug in all #s
2.Multiply3.Add
Remember to square the units on your answer!
Let’s Try One Together
1.Plug in all #s
2.Multiply3.Add
2lw 2lh 2wh
2155 21510 2510
150 300 100
550cm2
Try One Alone
1.Plug in all #s
2.Multiply3.Add
2lw 2lh 2wh
282 2815 2215
32 240 60
332in2
15in
2in8in
Surface Area
r2
2
2r2
Surface Area
heightLength
(circumference ofthe circle
)2r
2rh
Surface Area+
TO SOLVE:
1.Plug in all #s
2.Multiply3.Add
Remember to square the units on your answer!
2rh 2r2
3.14
Let’s Try One Together
1. Plug in all #s2. Cancel out exponent then,
Multiply3. Add
2rh 2r2
23.14 822 23.14 82
1105.28 401.92
1507.2cm2
Try One Alone
1. Plug in all #s2. Cancel out exponent then,
Multiply3. Add
2rh 2r2
23.14 520 23.14 52
628 157
785in2
5in
20in
Try It with a Partner
Complete #s: 8, 10, 13, & 14 on the practice sheet on the back of your
notes!
VolumeThe number of cubic units needed to fill
the space occupied by a solid.
The amount
of soup
that could
fit in a
can
The amount of Pringles that
can fit in the container
The amount of cereal that can
fit in the cereal box
units3
Volume
lwh
TO SOLVE:
1.Plug in all #s
2.Multiply Straight Across
Remember to cube the units on your answer!
Let’s Try One Together
1.Plug in all #s
2.Multiply
lwh
15510
750cm3
Volume
r2h
TO SOLVE:
3.14
1.Plug in all #s
2.Get rid of exponent
3.Multiply Straight Across
Remember to cube the units on
your answer!
Let’s Try One Together
1. Plug in all #s2. Cancel out
exponent 3. Multiply
r2h
3.14 82 22
3.14 64 22
4421.12cm3
