Question

a rocket is in the form of a circular cylinder closed at the lower end with a cone of the same base radius attached at the top of the cylinder is of radius 2.5 m and height 21m and the cone has slant height 8 metre find the total surface area and the volume of the rocket ​

Answer 1

Answer:

Step-by-step explanation:

r = 2.5 , h = 21m

cone's height = under the root  64 - 6.25 = 7.6

volume = volume of cone + volume of cylinder

           = pi*r*r*h + 1/3*pi*r*r*h

           = 4/3 pi*r*r*h  

          = 780.7 cubic metre

hope thats the answer to the question

thanks

Answer 2

Total surface area of the rocket is 412. 49 square metre.