Question

ayuda calcula el área y volumen ​

Answer 1

Explicación paso a paso:

$v = \frac{ab \times h}{3}$

$ab = \pi \: {r}^{2} \\ ab = \pi {3}^{2} \\ ab = 9\pi \: {cm}^{2}$

$v = \frac{ab \times h}{3} \\ v = \frac{9\pi \times4 }{3} \\ v = \frac{36\pi}{3} {cm}^{3}$

$a = \pi \: gr + \pi \: {r}^{2}$

$g = \sqrt{( {4cm)}^{2} + ( {3cm})^{2} } \\ g = \sqrt{16 {cm}^{2} + 9 {cm}^{2} } \\ g = \sqrt{25 {cm}^{2} } \\ g = 5 cm$

$a = \pi(5cm)(3cm) + \pi {3cm}^{2} \\ a = 15\pi \: {cm}^{2} + 9\pi {cm}^{2} \\ a = 24\pi {cm}^{2}$