Surface area of a cube and rectangular prism. How to find the surface area of a cube SA = Ph + 2B 12 cm = (124) = 48 = 864 cm² P = the perimeter of the.

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