1. Surface
Area

2. Surface Area What does it mean to you?
Does it have anything to do with what is in the inside of the prism.?
Surface area is found the by finding the area of all the sides and then adding those answers up.
How will the answer be labeled?
The area on the outside of the shape
Nope, the inside is volume
Units2 because it is area!

3. Rectangular Prism 4 5 How many faces are on here? 6 6
Find the area of each of the faces.
Do any of the faces have the same area?
5 x 4 = 20 x 2 =40
6 x 5 = 30 x 2 = 60
4 x 6 = 24 x 2 = 48
148 in2
Find the SA

4. 7th Grade Cube Are all the faces the same? YES A
How many faces are there? 4m 6
Find the Surface area of one of the faces.
4 x 4 = 16
Take that times the number of faces.
X 6
96 m2
SA for a cube.

5. 7th Grade Triangular Prism4 5 3
Find the surface area. Start by finding the area of the triangle.
x 2= 12
4 x 3/2 = 6
How many triangles were there?
5 x 10 = 50 = middle
4 x 10 = 40 = top
3 x 10 = 30 = bottom 2
Find the area of the 3 rectangles.
SA = m2
What is the final SA?

6. SURFACE AREA Why should you learn about surface area?
Is it something that you will ever use in everyday life?
If so, who do you know that uses it?
Have you ever had to use it outside of math?