Cylinder tank has radius 1.2 metre and height 3 metre how many litres of water will it hold

13570 litres

Step-by-step explanation:

Volume of a a cylinder  = πr²h

given: radius = 1.2 metre, height = 3 metre,

Now substitute for the values to get the volume

 V = 3.142 x 1.2 x 1,2 x 3

     = 13.57m³.

Recall

    m³ = 1000 litres

Therefore, 13.57m³ = 13.57 x 1000

                                =13570litres.

it would open into a square depending on the type of envelope i’m not sure about the second part

8+10

step-by-step explanation:

you multiply 4 by 2 and 5 by 2