Surface Area and Volume

Q1

What are the formulas for surface area and volume of cuboid?

Surface area of cuboid = 2(lb+bh+hl)
Volume = l × b × h
where l = length, b=breadth and h = height.

Q2

What is the total surface area of the cylinder?

The total surface area of the cylinder = 2 π r(r+h), where r is the radius of the circular base and h is the height of the cylinder.

Q3

How to calculate the volume of a cone-shaped object?

If r is the radius of the circular base of the cone-shaped object and h is the height, then the formula to find the volume of the cone is given by: V = 1/3π r² h

Q4

What is the total surface area of the hemisphere?

The total surface area of the hemisphere is equal to the sum of half of the surface area of sphere and the area of its circular base.
Total surface area of hemisphere = 2 π r²+ π r² = 3 π r²