Chhattisgarh Board Solutions for Chapter: Mensuration - II, Exercise 3: EXERCISE 15.2

Find out the total surface area of the cuboid whose length, breadth and height are $6.5 \mathrm{cm}, 4.5 \mathrm{cm}$ and $2 \mathrm{cm}$ respectively.

A cuboid of length $15 \mathrm{feet}$, breadth $12 \mathrm{feet}$ and height $9 \mathrm{feet}$. Find its total surface area.

Find the surface area of the cuboid whose length is $0.5 \mathrm{m}$, breadth $25 \mathrm{cm}$ and height $15 \mathrm{cm}$.

Find the total surface area of cube having side $3.4 \mathrm{cm}$

Find the side of a cube, whose total surface area is $216 {\mathrm{cm}}^2$.

The walls, floor and roof of a room are to be plastered. If the length, breadth and height of the room are $4.5 \mathrm{m}, 3 \mathrm{m}$ and $3.5 \mathrm{m}$ respectively, then calculate the area to be plastered.

The measurements of a cuboidal oil box are $30 \mathrm{cm}, 40 \mathrm{cm}$ and $50 \mathrm{cm}$ respectively. The cost of the tin sheet used in making the box is $₹10$ per ${\mathrm{m}}^2$. Find the cost of tin required to make $20$ such boxes.

The edges of two cubes are $8 \mathrm{cm}$ and $4 \mathrm{cm}$ respectively. Calculate the ratio of their surface area.