A solid is in the form of a cylinder with hemispherical  ends. The total height of the solid is 19cm and the diameter of the cylinder is 7 cm. Then the volume and total surface area of the solid is. 

radius$=\frac{7}{2}cm$

height of cylinder$h=12cm$

volume of solid

= volume of cylinder $+2$. Volume of hemisphere

$=\pi r^{2}h+2.\frac{2}{3}\pi r^3$

$=\pi r^2(h+\frac{4}{3}r)$

$=\frac{22}{7}\times \frac{7}{2}\times \frac{7}{2}(12+\frac{4}{3}.\frac{7}{2})$

$=\frac{77}{2}\times \frac{50}{3}$

$=641.66c{m}^3$

Total surface area of solid $\to \left(2\right)$

$=$L.S.A of cylinder $+$2. L.S.A of hemisphere

$=2\pi rh+2.2\pi r^2$

$=2\pi r(h+2r)$

$=2\times \frac{22}{7}\times \frac{7}{2}(12+2.\frac{7}{2})$

$=22\times 19$

$T.S.A=418c{m}^2$