UNIT-6
17. Which of the following cannot be true for a polyhedron?
(a) V = 4, F = 4, E = 6
(b) V = 6, F = 8, E = 12
(c) V = 20, F = 12, E = 30
(d) V = 4, F = 6, E = 6
18. In a blueprint of a room, an architect has shown the height of the
room as 33 cm. If the actual height of the room is 330 cm, then the
scale used by her is
(a) 1:11
(b) 1:10
(c) 1:100
(d) 1:3
19. The following is the map of a town. Based on it answer question 19-21.
The number of hospitals in the town is
(a) 1
(b) 2
(c) 3
(d) 4
There are two rectangular bases.
There are four rectangular faces.
The figure is a rectangular prism.
There is one rectangular base.
There are four triangular faces.
The figure is a rectangular pyramid.
There are two triangular bases.
There are three rectangular faces.
The figure is a triangular prism.
There is one hexagonal base.
There are six triangular faces.
The figure is a hexagonal pyramid.
V V V V V
S S S S S
S S S S S
185
185
185
185
185
ISUALISING
ISUALISING
OLID
OLID
HAPES
HAPES
ISUALISING
ISUALISING
ISUALISING
OLID
OLID
OLID
HAPES
HAPES
HAPES