Question

1. A closed cylindrical tank of height 1.4 m. and radius of the base is 56 cm.
is made up of a thick metal sheet. How much metal sheet is required (Express
in square meters)​

Answer 1

Answer:

Prove that: (a - b)Cube + (b-c)cube + (c-a)cube= 3(a - b)(b -- c)(c - a).

Answer 2

Step-by-step explanation:

TSA OF CYLINDER IS = 2πr(h+r)

if we substitute in it we get

but height is 1.4m=140cm

now answer is in cm2 is 68992cm2

in m2

Answer is 6.8992m2