[tex]\large\blue{SURFACE \: AREA}[/tex]
[tex]________________________________[/tex]
In number 1, to get the surface area of the cube, is to multiply the result by 6, by the area of the square, since the square has a 6 square faces in a cube..
1.)
SA = 6 × 6 cm × 6 cm
SA = 6 × 36 cm²
SA = 216 cm²
Note : You should always remember that the Surface Area of a Cube is the sum of all the areas of the six (6) square faces.
In number 2, to get the surface area of the Rectangle Prism, first, multiply the length and the width and multiply the result by 2, since there are two equal lateral faces in the Rectangular Prism. Then get the product of the length and height and multiply the result by 2. Third, multiply the width and the height and multiply the result by 2. And the add all the area to get the total Surface Area of the Rectangular Prism..
2.)
SA = 2×[6 cm×3 cm) + (6 cm× 4 cm) + (3 cm× 4cm)
SA = 2 × [(18 cm²)+(24cm²)+(12cm²)
SA = 2× 54 cm²
SA = 108 cm²
Note : You should always remember that theSurface area of a Prism is the aum of the lateral area and the areas of the two bases..
