If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Total surface area of the cylinder will be doubled.
(b) Total surface area of the cylinder will remain unchanged.
(c) Total surface of the cylinder will be halved.
(d) None of the above
If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Curved surface area of the cylinder will be doubled.
(b) Curved surface area of the cylinder will remain unchanged.
(c) Curved surface area of the cylinder will be halved.
(d) Curved surface area will be 1/4 of the original curved surface.
If the height of a cylinder becomes 1/4 of the original height and the
radius is doubled, then which of the following will be true?
(a) Volume of the cylinder will be doubled.
(b) Volume of the cylinder will remain unchanged.
(c) Volume of the cylinder will be halved.
(d) Volume of the cylinder will be 1/4 of the original volume.
What is the area of the largest triangle that can be fitted into a
rectangle of length l units and width w units?
(a) lw/2 (b) lw/3 (c) lw/6 (d) lw/4
A circle of maximum possible size is cut from a square sheet of board.
Subsequently, a square of maximum possible size is cut from the
resultant circle. What will be the area of the final square?
(a) 3/4 of original square. (b) 1/2 of original square.
(c) 1/4 of original square. (d) 2/3 of original square.
A cube of side 4 cm is cut into 1 cm cubes. What is the ratio of the
surface areas of the original cubes and cut-out cubes?
(a) 1 : 2 (b) 1 : 3 (c) 1 : 4 (d) 1 : 6
A cube of side 5 cm is painted on all its faces. If it is sliced into 1
cubic centimetre cubes, how many 1 cubic centimetre cubes will
have exactly one of their faces painted?
(a) 27 (b) 42 (c) 54 (d) 142
Find the area of polygon ABCDEF, if AD = 18cm, AQ =
14 cm, AP = 12 cm, AN = 8 cm, AM = 4 cm, and FM, EP,
QC and BN are perpendiculars to diagonal AD.
The parallel sides of a trapezium are 40 cm and 20 cm. If
its non-parallel sides are both equal, each being 26 cm,
find the area of the trapezium
+91 94284 01196 (WhatsApp only)
C-15, Suvidhapark Society, Amitnagar circle, Karelibaug, Vadodara (390018)
© Copyright 2025. Doubtora. All Rights Reserved
