Question

On the basis of the above information, answer any four of the following questions:
(a) Which of the following is correct expression for the surface area of
cylindrical part of Boiler?
(1) 2r2
(ii) 6r?
(iii) 4r?
(iv) 8r?
2.
CLASS-X
DATE: 25-11-2020
(b) Which of the following is correct expression for the total surface area of
Boiler?
22
()
(iii) 6ar?
(iv) 10x r
3
(c) Which of the following is correct expression for the volumes of Boiler?
15
19
(i)
ar
(1SAT
(11) Par
17
(iv)
Лr3
ar
4
(d) What is the ratio of volume to the surface area of the boilers?
13
3
10
3
(1)
(iv)
30
10
3
10
(e) If r = 3 m, what is the volume of Boiler?
(i) 1171 m
(ii) 1257 m
(iii) 2311 m
(iv) 2387 m
PART - B​

Answer 1

gdksnshdjwnaokqbzhdidmcdi hdjhdwnsh