A cylindrical piece of wood of radius 4.2 cm and length 150 cm is cut length rise into two equal pieces. Calculate the surface area of one piece

Answer 1

I'll use h for height, because l for length looks like the number 1.

the surface area is

two semi-circular ends: 2*(πr^2/2) = πr^2
the rectangular cut surface: 2rh
the curved surface: πrh

Now just plug and chug

Answer 2

What is the final answer

Answer 3

45cm

Answer 4

3987.72

Answer 5

Just do the working understanding nothing