Related Questions

The diameter of the base of a cone is 10.5 c,. and its slant height is 10 cm. The curved surface ares is:
A 150 sq. cm
B 165 sq.cm
C 177 sq. cm
D 10 sq.cm
A regular hexagonal base prism has height 8 cm and side of base is 4 cm. What is the total surface area (in cm2) of the prism?
A 54(3 + \u221a3)
B 36(3 + \u221a3)
C 48(4 + \u221a3)
D 24(4 + \u221a3)
The height and weighs of a solid cone are 6 cm and 2.7 kg. The weighs of a similar cone of 5 cm height is _____ .
A 9.75 kg
B 9.25 kg
C 6.25 kg
D 5.75 kg
If a cylinder of radius 7 cm and height 9 cm is melted and constructed into a cone of the same radius, what will be the height of this cone?
A 54 cm
B 9 cm
C 27 cm
D 13.5 cm
This type of surface may be a plane, a single curved surface, or a warped surface:
A Edge surface
B Ruled surface
C Auxiliary surface
D Developed surface
A solid cone of height 36 cm and radius of base 9 cm is melted to form a solid cylinder of radius 9 cm and height 9 cm. What percent of material is wasted this process?
A 25
B 5
C 0
D 10
The C.G. of a thin hollow cone of height ‘h’, above its base lies on the axis, at a height of
A $$\frac{{\text{h}}}{3}$$
B $$\frac{{\text{h}}}{4}$$
C $$\frac{{2{\text{h}}}}{3}$$
D $$\frac{{3{\text{h}}}}{4}$$
If the radius of cylinder is halved and height is doubled , then what will be the curved surface area?
A Increase by 1
B The same
C Double
D Triple
if the radious of cylinder is halved and height is doubled, then what will be the curved surface area
A increase by one
B the same
C double
D triple
If th radius of cylinder is halved and height is doubled, then what will be the curved surface area?
A icrease by 1
B the same
C double
D triple

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