Question

pls make it fast please​

Answer 1

Answer:

let r is the radius of the right circular cylinder.

then height of the cylinder h=2r

total surface area

=2πr^2+2πr.h=231

=> 2πr(r+h)=231

=> 2πr(r+2r)=231

=> 2πr.3r=231

=> 6πr^2=231

=> r^2=231/6π=231×7/6×22=21×7/6×2=7×7/2×2

=> r=7/2

so,height of the cylinder=2r=2.7/2=7

height of the cylinder is 7 cm

Answer 2

Answer:

The height of the cylinder is 7 cm

As you can see in the solution.

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