Assertion: If the inner dimensions of a cuboidal box are 50 cm×40 cm×30 cm, then the length of the longest rod that can be placed in the box is 50√2 cm.
Reason: The line joining opposite corners of a cuboid is called its diagonal.
Also, length of longest rod = length of diagonal =√l2+b2+h2
Assertion is correct but Reason is incorrect
Both Assertion and Reason are correct, but Reason is not the correct explanation of Assertion
Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
Assertion is incorrect but Reason is correct.
Match the following.
(a) edge(i) point(b) vertex(ii) 1−dimension(c) face(iii) 2−dimension
(a) - (iii), (b) - (i), c-(ii)
(a) - (i), (b) - (iii), c-(ii)
(a) - (ii), (b) - (i), c-(iii)
(a) - (i), (b) - (ii), c-(iii)
- 50 cm
- 120 cm
- 50√2 cm
- 50√3 cm
Cuboids can be formed by stacking
[Stacking means placing objects on top of one another]
- vertical angle
- obtuse angle
- straight angle
- right angle
A paper is rectangular in shape with negligible thickness. A stack of papers is arranged one above the other.
S1 : The resulting figure is three dimensional.
S2 : The figure is called a cuboid.
S1 is true but S2 is false
S1 is false but S2 is true
S1 and S2 are true
S1 and S2 are false
The length of the longest bar that can be fixed in a room of dimensions 12 m × 9 m × 8 m is
A small indoor greenhouse is made entirely of glass panes held together with tape. It is 30 cm long, 25 cm wide and 25 cm high. How much of tape is needed for all the 12 edges?
The surface area of a box which is in the form of a cuboid whose dimensions are
l x b x h is:
2(lb + bh + hl)
lb + bh + hl
2(lh + bh)
lh + bh