Question

total surface area of cubiod if length is 15 breadth is 12 height is 5​

Answer 1

Answer:

Total surface area of cuboid = 630

Step-by-step explanation:

• Length = 15
• Breadth = 12
• Height = 5

Total surface Area of a Cuboid = 2(lb + bh +hl)

⇒ 2 ( 15*12 + 12*5 + 5*15)

⇒ 2 ( 315 )

⇒ 630

Answer 2

Given :

• Length =15cm
• Breadth =12 cm
• Height = 5cm

$\begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered} \\ \rule{200pt}{3pt} \end{gathered}\end{gathered}\end{gathered}\end{gathered}$

To Find :

• Total Surface Area = ?(TSA)

$\begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered} \\ \rule{200pt}{3pt} \end{gathered}\end{gathered} \end{gathered}\end{gathered}$

Solution

$✭ {\underline{\pmb{\frak{ Formula \; Used \; :- }}}}$

• ${\underline{\boxed{\pmb{\sf{ Total \; Surface \; Area = 2(lb + bh + hl) }}}}}$

Where :

• L = Length
• B = Breadth
• H = Height

$\begin{gathered}\begin{gathered}\begin{gathered}\begin{gathered} \\ \qquad{\underline{\rule{150pt}{1pt}}} \end{gathered}\end{gathered}\end{gathered}\end{gathered}$

${ \bigstar{}}$Calculating The Total Surface Area :

$\begin{gathered} {\dashrightarrow{\qquad{\sf{ Total \; Surface \; Area = 2(lb + bh + hl) }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Total \; Surface \; Area = 2[(15 \times 12) + (12 \times 5) + (5 \times 15)] }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Total \; Surface \; Area = 2(180+ 60 + 75) }}}} \\ \\ \\ \ {\dashrightarrow{\qquad{\sf{ Total \; Surface \; Area = 2 \times315 }}}} \\ \\ \\ \ {\qquad \; \; {\therefore \; {\underline{\boxed{ \color{green}{\pmb{\frak{ Total \; Surface \; Area = 630 \; {cm}^{2} }}}}}}}} \end{gathered}$

$\begin{gathered} \\ \qquad{\rule{150pt}{1pt}} \end{gathered}$

★ Therefore :

❛❛ Total Surface Area of the given Cuboid is 630cm² . ❜❜

$\begin{gathered} \\ {\underline{\rule{300pt}{9pt}}} \end{gathered}$