Question

find the area of cardboard required to make a box of length 25 cm, breadth 0.5 m and height 15 cm​

Answer 1

Step-by-step explanation:

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Answer 2

Question:

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

Given:

• Length = 0.5cm
• Breadth = 25cm
• Height = 15cm

To find: 

• Total surface area of closed cardboard box?

Required Formula:

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

Solution:

• Let's Solve

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

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

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