The surface area of a rectangular prisms that are
3.5ft. x 4.25ft. x 6ft
Answer 89.25ft
2.33 meters x 2.5meters x 4meters
Answer 23.3 meters
Am I correct
Nope. Multiplying the lengths of sides gives you the volume. To get the surface area of a rectangular prism,
SA = 2(L*W + L*H + W*H)
where
L = length
W = width
H = height
therefore,
#1.
SA = 2(6*4.25 + 6*3.5 + 4.25*3.5)
SA = 122.75 ft^2
#2.
SA = 2(4*2.5 + 4*2.33 + 2.5*2.33)
SA = 50.29 m^2
hope this helps~ :)
To find the surface area of a rectangular prism, you need to calculate the areas of all six sides and then add them together.
For the first rectangular prism with dimensions 3.5ft. x 4.25ft. x 6ft, you can calculate the surface area as follows:
1. Calculate the area of the first side: 3.5ft x 4.25ft = 14.875 square feet.
2. Calculate the area of the second side: 3.5ft x 4.25ft = 14.875 square feet (assuming the sides are not identical).
3. Calculate the area of the third side: 3.5ft x 6ft = 21 square feet.
4. Calculate the area of the fourth side: 3.5ft x 6ft = 21 square feet.
5. Calculate the area of the fifth side: 4.25ft x 6ft = 25.5 square feet.
6. Calculate the area of the sixth side: 4.25ft x 6ft = 25.5 square feet.
Now, add up all the areas: 14.875 + 14.875 + 21 + 21 + 25.5 + 25.5 = 122.75 square feet.
Therefore, the surface area of the first rectangular prism is 122.75 square feet.
Regarding the second rectangular prism with dimensions 2.33 meters x 2.5 meters x 4 meters, you can follow the same steps:
1. Calculate the area of the first side: 2.33m x 2.5m = 5.825 square meters.
2. Calculate the area of the second side: 2.33m x 2.5m = 5.825 square meters (assuming the sides are not identical).
3. Calculate the area of the third side: 2.33m x 4m = 9.32 square meters.
4. Calculate the area of the fourth side: 2.33m x 4m = 9.32 square meters.
5. Calculate the area of the fifth side: 2.5m x 4m = 10 square meters.
6. Calculate the area of the sixth side: 2.5m x 4m = 10 square meters.
Now, add up all the areas: 5.825 + 5.825 + 9.32 + 9.32 + 10 + 10 = 50.29 square meters.
Therefore, the surface area of the second rectangular prism is 50.29 square meters.
Based on these calculations, the correct answers are:
- The surface area of the first rectangular prism is 122.75 square feet.
- The surface area of the second rectangular prism is 50.29 square meters.