Mathematics
A solid cylinder, made of iron is melted and recasted into solid cones of same radius of cross-section and height. Then the number of cones obtained is :
2
6
3
4
Related Questions
Points A and B have co-ordinates A(3, 6) and B(1, 4). A' is the reflection of point A in the x-axis and B' is the reflection of point B in the line AA'. Then the coordinates of point B' are :
(5, 4)
(5, -4)
(-5, 4)
(-5, -4)
If triangle ABC and PQR are similar, PQ = 10.4 cm, AB = 6.5 cm and perimeter of triangle ABC = 60 cm, then the perimeter of triangle PQR is :
120 cm
96 cm
108 cm
72 cm