Advertisements
Advertisements
Question
Work out the surface area of following shape (use π = 3.14).
Advertisements
Solution
In the given figure, there is a cube of side 5 cm and a cylinder of height 20 cm and radius is 2 cm.
So, total surface area = surface area of the cube + curved surface area of cylinder
= 6(5)2 + 2π(2) × 20 ...`[(∵ "Surface area of cube" = 6a^2),(∴ "Surface area of cylinder" = 2 pirh)]`
= 150 + 80π
Total surface area = 150 + 251.2 = 401.2 cm2
Notes
In this question assume that cylinder is at end open.
APPEARS IN
RELATED QUESTIONS
A suitcase with measures 80 cm × 48 cm × 24 cm is to be covered with a tarpaulin cloth. How many metres of tarpaulin of width 96 cm is required to cover 100 such suitcases?
Identify the net which can be used to make cube (cut out copies of the net and try it):
Identify the net which can be used to make cube (cut out copies of the net and try it):
Identify the net which can be used to make cube (cut out copies of the net and try it):
Every solid shape has a unique net.
Find the perimeter of the given figure.
Find the area of the shaded portion in the following figure.
Find the area of the shaded portion in the following figure.
Work out the surface area of following shape (use π = 3.14).
Work out the surface area of following shape (use π = 3.14).
Out of the following which is a 3-D figure?
State whether the statement is True or False.
The solid shapes are of two-dimensional.
The circle, the square, the rectangle and the triangle are examples of plane figures.
The circle, the square, the rectangle and the triangle are examples of plane figures.
The circle, the square, the rectangle and the triangle are examples of plane figures.
The circle, the square, the rectangle and the triangle are examples of plane figures.
The circle, the square, the rectangle and the triangle are examples of plane figures.
