Question

write the expression for total surface area of a solid hemisphere of radius 'r'.





plz give me answer in step by step

Answer 1

Answer:

$\begin{gathered}Total \: surface \: area \:of \\Hemisphere =3\pi r^{2}\end{gathered}$

Step-by-step explanation:

$\begin{gathered} Given \\radius \: of \: a \: hemisphere = r \end{gathered} \\ </p><p>\begin{gathered} Total \: surface \: area \:of \: Hemisphere\\ = Curved \: surface \: Area + Base \: Area \\=2\pi r^{2}+ \pi r^{2}\\=3\pi r^{2}\end{gathered}$

Therefore,

$\begin{gathered}Total \: surface \: area \:of \\Hemisphere =3\pi r^{2}\end{gathered}$

${\blue{\rule{25pt}{1pt}{\pink{\rule{30pt}{3pt}{\red{\rule{100pt}{5pt}{\blue{\rule{25pt}{1pt}{\pink{\rule{30pt}{3pt} }}}}}}}}}}$${\blue{\rule{25pt}{1pt}{\pink{\rule{30pt}{3pt}{\red{\rule{100pt}{5pt}{\blue{\rule{25pt}{1pt}{\pink{\rule{30pt}{3pt} }}}}}}}}}}$