Question Text
Question 1 :
The diameter of two right circular cones are equal. If their slant heights are in the ratio $3 : 2$, then what is the ratio of their curved surface areas?
Question 2 :
The radius and height of a cylinder are $7$ cm and $15$ cm respectively then its volume is
Question 3 :
The circumference of the base of a cylinder is 12 m and its height is 77 m. The volume of the cylinder is
Question 4 :
A cylindrical tank $7km$ in diameter, contains water to a depth of $4m.$ Find the total area of the wet surface $\left( {\pi = 3.14} \right)$
Question 5 :
The volume of a sphere of radius $\pi$ cm is ________ cc.
Question 6 :
Water flows out through a circular pipe whose internal diameter is $2 cm$, at the rate of $6$ metre per second into a cylindrical tank, the radius of whose base is $60 cm$. By how much will the level of water rise in $30$ minutes?