Mathematics
A solid is in the form of right circular cylinder with a hemisphere at one end and a cone at the other end. The radius of the common base is 2.8 cm and heights of cylinder and conical portions are 14 cm and 7 cm respectively. Find : (i) the total surface area of the solid (ii) the volume of the solid Take π = and find your answers correct to two decimal places.
Related Questions
Find the mode of the following distribution by drawing a histogram :
C.I. Frequency 1-6 6 7-12 12 13-18 20 19-24 15 25-30 9 In rhombus ABCD, A(7, 3) and C(0, -4) are two opposite vertices. Find :
(i) mid-point of diagonal AC
(ii) mid-point of diagonal BD
(iii) slope of diagonal AC
(iv) the equation of diagonal BD.
From a boat, 300 m away from a vertical pillar, the angles of elevation of the top and the foot of a vertical pillar at the edge of the cliff are 55°40' and 54°20' respectively. Find the height of the pillar correct to the nearest metre.