-- The Net

-- Top && Bottom

area of Top && Bottom = (Lxw)+(Lxw)

= 2 (Lxw)

-- Front && Back

area of Front && Back = (hxL) + (hxL)

= 2 (hxL)

-- Sides

area of the sides = (hxw) + (hxw)

= 2 (hxw)

-- Surface Area :

8+8=

2x8=

2(8)

area = 2(Lxw) + 2(hxL)+2(hxw)

-- Solve Surface Area

h=30cm

L=20cm

w=10cm

400 (2) + 1200(2) + 600(2)

= 2200cm(2)

-- Example Question :

-- The Net (for the example question)

-- Answer (Surface Area) :

= 2(Lxw)+ 2(hxL) + 2 (hxw)

= 2 (17cm+5cm) + 2(17cm+7cm)+ 2(17cm+5cm)

= 2x35cm(2) + 2x119cm(2)+2x85cm(2)

= 70cm(2) + 238cm(2) + 170cm(2)

=478cm(2)

## 8 comments:

Chelsey your diagrams and nets are great. I could not have been more clear myself. Thanks!

great job chelsey!your drawings/diagrams and explainations were very clear!-Karla

great job, your diagram and explanation are nice.

nice job on your scribe post ! :)

nice job. i really like your diagrams. they're very understandable.

Very nice explaining what a rectangular prism and what a net is. I also like your Diagrams, it helps make your explaination more clear and understandable

great job...the lines were represented niely

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