Question

Find the total surface area of closed cardboard box of length 0.5 M,breadth 25 cm height 15cm

Answer 1

Answer:

the surface area is 9500cm²

Step-by-step explanation:

surface area (sa) = 2 × ( h × w ) + 2 ( h × l ) + 2 ( w + l )

sa = 2 × ( 15 × 50 ) + 2× ( 15 × 25 ) + 2 × ( 50 × 25 ). ( 0.5 m = 50 m )

sa = ( 30 × 100 ) + ( 30 × 50 ) + ( 100 × 50 )

sa = 3000 + 1500 + 500

sa = 9500 cm²

sa = 95 m²

Answer 2

Question:

• Find the total surface area of a closed cardboard box of length 0.5, breadth 25 cm and height 15cm

Answer:

• The total surface area of cardboard box is 790cm²

Given:

• Length = 0.5cm
• 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

$\begin{gathered}\bf{\dag}\; \large{\underline{\frak{ \color{indigo}{Substituting\:the\:given\:values,}}}}\\ \\ \\:\implies\sf 2(0.5 \times 25 + 25 \times 15 + 15 \times 0.5)\\ \\ \\ :\implies\sf 2(12.5 + 375 + 7.5)\\ \\ \\ :\implies\sf 2(395)\\ \\ \\:\implies{\underline{\boxed{\frak{{790\:cm^2}}}}}\pink\bigstar\\ \\\end{gathered}$

$\therefore{\underline{\sf{ Total\:surface\:area\:of\:cuboid\:is\: \textsf{\textbf{790 cm²}}.}}}$

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||TheUnknownStar||