Lateral Surface Area of a Rectangular Prism

Q. The lateral surface area of a rectangular prism is___

1. $2(l+b)h{\text{unit}}^2$
2. $lbh{\text{unit}}^2$
3. $2\left(lb\right)+2\left(bh\right)+2\left(lh\right){\text{unit}}^2$
4. $(l+b)h{\text{unit}}^2$

Q. The perimeter of a base of a room is in the shape of a rectangular prism is $30m$. The lateral surface area of the room is measured to be $210{\text{m}}^2$. Find the height of the room.

1. 7 m
2. 14 m
3. 3.5 m
4. 10 m

Q. Tom wants to paint his study room. Four walls of the room measures $12$ ft by $11$ ft, and base measures $11$ ft by $9$ ft. Find the cost of paint to paint for all the four walls and base if cost of paint is $\$3\text{sq. ft}$.

1. $\$1441$
2. $\$720$
3. $\$2880$
4. $\$1440$

Q. Calculate the ratio of total surface area to the lateral surface area for the given figure below.

1. $\frac{50}{71}$
2. $\frac{71}{50}$
3. $\frac{72}{50}$
4. $\frac{71}{49}$

Q.
The lateral surface area (in sq. units) of the the rectangular prism as shown in the diagram is

1. 80

Q. Which of the following is correct for a rectangular prism?

1. Total surface area of a rectangular prism $>$ Lateral surface area of a rectangular prism
2. Total surface area of a rectangular prism $<$ Lateral surface area of a rectangular prism
3. Total surface area of a rectangular prism $=$ Lateral surface area of a rectangular prism
4. None of these