Question

find the total surface area of a closed cardboard box of length 50 cm breadth 25 cm and height 15 cm​

Answer 1

Answer:

T.S.A of closed cardboard box = 2( lb + bh + hl )

l = 50 cm

b = 25 cm

h = 15 cm

putting the values of l,b,h

2( 50× 25 + 25×15 + 50× 15 )

2( 1250 + 375 + 750)

2( 2375 )

4750 cm square

Answer 2

Question:

• Find the total surface area of a closed cardboard box of length 50, breadth 25 cm and height 15cm

Answer:

• The total surface area of cardboard box is 4,750cm²

Step-by-Step Explanation:

Given:

• Length = 50cm
• Breadth = 25cm
• Height = 15cm

To find: 

• Total surface area of closed cardboard box?

⠀

Required Formula:

$\begin{gathered} {\color{orange}\bigstar}\; \underline{\boxed{\frak{{Total\:surface\:Area_{\;(cuboid)} = 2(lb + bh + hl)}}}}\\ \\\end{gathered}$

Solution:

• Let's Solve

$\begin{gathered}\bf{\dag}\; \large{\underline{\frak{ \color{indigo}{Substituting\:the\:given\:values,}}}}\\ \\ \\:\implies\sf 2(50 \times 25 + 25 \times 15 + 15 \times 50)\\ \\ \\ :\implies\sf 2(1250 + 375 + 750)\\ \\ \\ :\implies\sf 2(2375)\\ \\ \\:\implies{\underline{\boxed{\frak{{4750\:cm^2}}}}}\pink\bigstar\\ \\\end{gathered}$

${\underline{\sf{ Total\:surface\:area\:of\:cuboid\:is\: \textsf{\textbf{4,750 cm²}}.}}}$

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||TheUnknownStar||