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Visualising solid shapes Important Questions
In this page we have Visualising solid shapes Important Questions for Class 7 Maths Chapter 15 . Hope you like them and do not forget to like , social share and comment at the end of the page.
Fill in the blanks:-
i. Plane figure is also called_________________
ii. A solid shape that has only a curved surface is called a ________________
iii. A _______________ is a solid who bases are identical polygon faces and other faces are rectangles.
iv. A pyramid is a solid whose base is a flat __________________ figure and whose side faces are triangles having a common vertex outside the surface of the ______________
v. A triangular pyramid in which all faces are equal is called ______________________
vi. A ________________ of a solid figure demonstrates how it is constructed by showing its sides, faces and vertices.
vii. To make a solid from a sheet of flat paper, we need to construct a ______________
viii. A line where two faces of a solid meet is called its ___________
ix. The term isometric refers to _________________________________
x. The below figure is the net of _____________
xi. A triangular prism has __________ faces, __________ edges and __________ vertices.
xii. A triangular pyramid has __________ faces, __________ edges and __________vertices.
What is Leonhard Euler's rule?
Label the net.
Draw the net of a cube. Put the numbers 1 to 6 on the faces so that the numbers on opposite faces add to 7.
Name the different plane shape needed to draw the net of
a. a cube
b. a triangular prism
c. a triangular pyramid
d. a cylinder
The cross-section of diagonal cut of a cube creates which shape?
What cross-section would you get when you give a
a) Vertical cut
b) Horizontal cut to the following objects
i. a basket ball
ii. a dice
iiii. An unsharpened pencil
vi. A triangular prism
Which of these two figure can be the net for tetrahedron
True and false
a. A pyramid has only one vertex
b. If the base of a pyramid is a square, it is called a square pyramid.
c. The solid shapes are of two-dimensional.
d. A net is a skeleton-outline of a solid that can be folded to make it.
e. All the faces, except the base of a square pyramid are triangular.
3. A sketch whre the measurements kept proportional
6. A pyramid with triangle base
7. the line segments of the skeleton of solid shape
1. solid shapes are three-______
2. flat surfaces of solid shapes
4. it is the useful way to see how three-dimensional objects can be viewed in two dimensions
5. The corners of a solid shape
i. 2d figure
ii. sphere
iii. Prsim
iv. rectangular, base
v, regular tetrahedron
vi. net
vii. net
viii. edge
ix. proportion to lenght /equal measure
x. trianglar prism
xi. 5,9,6
xii 4,6,4
2. $ F + V = E + 2$
Where F,V,E denote number of faces, number of vertices and number of edges respectively of such solids. This is known as 'EULER's FORMULA
3. Square pyramid
a. 6 squares
b. 2 triangle and 3 rectangle
c. 4 triangle
d. 2 circle and 1 rectangle
6. square
Vertical , Horizontal
a. circle , circle
b. square, square
c. rectangle, circle
d. triangle, rectangle
a. false
b. true
c. false
d. true
e. true
i. dimensional
ii. faces
iii.isometric
iv. Shadows
v. vertices
vi. tetrahedron
vii. edges
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