Question

1: Multiple choice questions:
A. Total surface area of a cylinder is:
1: 2nrh
ii: arh
iii: 2nr (h+r)
iv: None of these.
B. Curved surface area of a cuboid is:
1: 2(b + 16 + bh) ii: 4 side? iii: 2(1+b)h iv: None of these.
C. Total surface area of hemisphere is:
1: 40r2
ii: 37r2
iii: 2tr2
iv: None of the these.
D. Volume of sphere is:
1: 2/31tr3
ii: arah iii: 4/3tr
iv: None of the these.
E. Total surface area of a cone is:
T: +r21
ii: url
iii: ar(l+r)
iv: None of the these.
F. Volume of a cone is:
1: 1/3 volume of cylinder.
ii: 1/3 volume of sphere.
iii: Both (I, ii)
iv: None of these.​

Answer 1

Answer:

A. - iii. 2πr(h+r)

B. - iv. none of these

C. - iv. none of these

D. -4/3 πr2

E. - πrl + πr2

F. - none of these