Find the surface area of the rectangular prism of 2,3,7 using its net

We can see from the net that there are two rectangles with dimensions 3 cm by 6 cm, two rectangles with dimensions 2 cm by 6 cm and two rectangles with dimensions 2 cm by 3 cm. The total surface area is then

2 × 3 × 6 + 2 × 2 × 6 + 2 × 2 × 3 = 72 cm2

Step-by-step explanation:

The surface area is the area of all the squares/rectangles

multiply all the numbers to get the areas

2 x 3 = 6

3 x 7 = 21

2 x 7 = 14

6 + 14 + 21 = 41

there is two of each square so we multiply by 2

41 x 2 = 82

82 is the surface area

Hope this helps

Step-by-step explanation: