surface area of a cube and rectangular prism. how to find the surface area of a cube sa = ph + 2b 12...
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Surface area of a cube and rectangular prism
How to find the surface area of a cube
SA = Ph + 2B
12 cm
= (12•4)= 48
= 864 cm²
P = the perimeter of the baseh = the height of the cube
(12) + 2 (12)²
• 12 + 2 (144)
B= the area of the base
= 576 + 288
How to find the surface area of a rectangular prism
14m6m
10m
SA = Ph + 2B
P= the perimeter of the base
h= the height of the prism
B= the area of the base
= (14+6+14+6)
= (40)
= 400
= 568m²
•10 + 2 (14• 6)
•10 + 2 (84)
+ 168
How to find the lateral surface area of a rectangular prism
SA = Ph
P= the perimeter of the base h= the height of the prism
= (12 + 30 + 12 + 30)
12 yd
22yd
30yd
= (84)
= 1848 yd²
• 22
• 22
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