Advertisements
Advertisements
प्रश्न
Work out the surface area of following shape (use π = 3.14).
उत्तर
To find the total surface area, we draw the figure as given below.
∴ Upper surface area
= 18 × 3 + 8 × 18 + 5 × 18
= 54 + 144 + 90
= 288 cm2
∴ Lower surface area = 288 cm2
∴ Surface area of those faces which are flat from right
= 18 × 18 + 2 × 18 + 3 × 18
= 324 + 36 + 54
= 414 cm2
Also, surface area of that face which are flat from left = 414 cm2
Surface area of from face = 18 × 5 + 2 × 8 + 8 × 18 + 3 × 2 + 3 × 18 + 3 × 3
= 90 + 16 + 144 + 6 + 54 + 9
= 319 cm2
Surface area of the black face = 319 cm2
∴ Total surface area = 288 + 288 + 414 + 414 + 319 + 319
= 288 + 1754
= 2042 cm2
APPEARS IN
संबंधित प्रश्न
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):
Which of the following is the top view of the given shape?
Use isometric dot paper to draw figure.
A tetrahedron
Use isometric dot paper to draw figure.
A rectangular prism with length 4 units, width 2 units and height 2 units.
Find the area of the shaded portion in the following figure.
Work out the surface area of following shape (use π = 3.14).
A solid with no vertex is ______.
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.
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.
