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The Surface Area Project

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on 9 June 2015

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Transcript of The Surface Area Project

The Surface Area Project
Triangular Pyramids
To find the Surface Area of triangular pyramid it would need to follow the formula:

SA= B+1/2Pl

B: Area of base
P: Perimeter of base
l: slant
Rectangular Prism
For finding the surface areas of a rectangular prism, you would need to find the area of the top and bottom rectangles, then find the area of both sides, then the area of the ends. After you have done all of that, you would need to add all of that numbers and then you would have the surface area.
Triangular Prisms
For finding the surface areas of a triangular prism, you would need to find the area of the center rectangle, the left and right rectangles, and the triangles. After you have done all of that, you would need to add all of the numbers and then you would have the surface area.
Rectangular Pyramids
To find the surface area of a rectangular pyramid you would need to follow the formula:

SA= B+1/2Pl

B: Area of base
P: Perimeter of base
l: slant
Go further! More examples and more problems:
Go to http://www.math.com/tables/geometry/surfareas.htm
Example
SA=2lh+2lw+2hw
SA= 2(6x4)+ 2(4x5) + 2(6x5)
SA= 48+ 40 + 60
SA= 148 cm squared
Example
SA= 3lw + 2 (1/2) bh
SA= 3(8x12) + 2(1/2) 8x3
SA= 288 + 24
SA= 312 cm squared
Example
SA= B + 1/2Pl
Example
SA= B + 1/2Pl
SA= (8x8) + 1/2(32x10)
SA= 64+ 160
SA= 224 in squared
There was a triangular pyramid with the slant of 5 in and sides of the base all equaling 4 in.
SA= (4x4) + 1/2(16x5)
SA= 16 + 40
SA= 56 inches squared
Full transcript