Question

use pie = 3.14
plz plz plz plz plz frnds help me ​

Answer 1

Answer:

hello mate see in attachment...

I hope it's helpful for you......

happy republic day... friend..

Answer 2

Given :

$\diamond$ Lateral Surface Area = 94.2 cm^2

$\diamond$ Height = 5 cm

To Find :

i) Radius of the base

ii) Volume of cylinder

Solution :

$\textbf{\underline{\underline{Radius\:of\:base :}}}$

$\star \sf \: Lateral \: Surface \: Area \: of \: Cylinder = 2\pi \: rh$

$\hookrightarrow \sf \: LSA = 94.2 {cm}^{2}$

$\hookrightarrow \sf \: 2\pi \: rh = 94.2 {cm}^{2}$

$\hookrightarrow \sf \: 2 \times 3.14 \times r \times 5 = 94.2 {cm}^{2}$

$\hookrightarrow \sf \: 31.4r = 94.2 {cm}^{2}$

$\hookrightarrow \: \sf \: r = \cancel \dfrac{94.2}{31.4}$

$\large \boxed{ \sf \: Radius = 3 \: cm}$

$\textbf{\underline{\underline{Volume\:of\:Cylinder :}}}$

$\star \sf \: Volume = \pi {r}^{2} h$

$\hookrightarrow \sf \: 3.14 \times 3 \times 3 \times 5$

$\large \boxed{ \sf \: Volume = 141.3 {cm}^{3}}$