Mathematics
The diameters of two cones are equal. If their slant heights are in the ratio 5 : 4 the ratio of their curved surface areas is:
4 : 5
5 : 4
16 : 25
25 : 16
Related Questions
The volume of conical tent is 462 m3 and the area of the base is 154 m2. The height of the cone is :
15 m
12 m
9 m
24 m
A conical tent is to accomodate 11 persons such that each person occupies 4 m2 space on the ground and has 20 m3 of air to breathe. The height of the cone is :
14 m
15 m
16 m
20 m
If the radius of the base of a cone is halved, keeping the height same, what is the ratio of the volume of the new cone to that of the original cone?
1 : 2
1 : 3
1 : 4
2 : 3
A cone of height 7 cm and base radius 3 cm is carved from a rectangular block of wood 10 cm × 5 cm × 2 cm. The percentage of wood wasted is:
34%
46%
54%
66%