Jocelyne's B.O.B.

Jocelyne's B.O.B.

SURFACE AREA:

The surface area is the area of the outside part of a shape. For a rectangular prism it would be the 2 sides, the top and bottom, and the front and back. A net is an easy way to show the rectangular prism's area .

The formula for this would be :

surface area = area top + area bottom + area side + area side² + area front + area back
OR
surface area = 2(L x W) + 2(H x L) + 2(H x W)
= 2(4cm x 2cm) + 2(2cm x 4cm) + 2(2cm x 2cm)
= 2(8cm) + 2(8cm) + 2(4cm)
= 16cm² + 16cm² + 8cm²
= 40 cm²

You can use the formula examples i showed you here to help you answer your own surface area question.

VOLUME:

The volume is the measurement of how much space the shape takes up. The answer is always cubed or in an exponent ³.The volume of a rectangular prism would look like this.


The formula for this would be:

volume = L x W x H
= 3cm x 2cm x 2cm

= 12 cm³
OR
volume = area of base x height

= 6cm² x 2cm
= 12cm³

Jeanine's BOB

(2)=squared


Surface Area of a Rectangular Prism:
Surface area is the total area of the prism. The measurements from the net all added up.
Surface Area = lengthxheight
= 4 cm x 4cm = 16cm(2)
=8cmx4cm=32 cm (2)
Then you add them all up.
16+16+32+32+32+32= 160cm(2)

Volume of a Rectangular Prism:
LxWxH
(lengthxwidthxheight)
8x4x16 = 512 cm (2)
base = 96cm(2) ( you add up the three rectangles across the middle )
height = 16 cm(2)
96x16 - 1536
Volume = 1536 cm (2)

Robbie's Scribe

Today, Mr. Harbec thought us how to find the volume of any prism.
(picture below)

(sorry picture a bit small)

Alleys Scribe

Dhonells Scribe Post

Today in class, Mr Jerema told us to find the surface area of various shapes. We were told to to measure the sides of 6 different shapes and make a "net" view of each shape. For the scribe, I was assigned 3 shapes to do .
My First Shape :

My Next Shape Was :

My Final Shape Was:

Those were the shapes I had to do for the scribe. Sorry I didn't post this earlier.

-Dhonell R G.

Chantal's Scribe

Jordan's scribe.

Today in class, Mr.J thought us how to find a surface area of a box. And the box we smashed it and opened it. Together there were 6 pieces in total(1 front, 1 back, 1 top, 1 bottom, and 2 sides.)

He thought us how to do find the area of the shape.


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