Question

Find the surface area of a cuboid whose length is 0.5 metre breadth 25 cm and height is 15 CM

Answer 1

Answer:

surface area of cuboid =2(lb+bh+hl). l=50cm

2(50*25+25*15+15*50) b=25cm

2(250+375+750). h=15cm

2(625+750)

2*1375

2750

Answer 2

Question:

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

Given:

• Length = 0.5m
• Breadth = 25cm=2.5m
• Height = 15cm=1.5m

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

$\begin{gathered}\begin{gathered}\bf{\dag}\; \large{\underline{\frak{ \color{navy}{Substituting\:the\:given\:values,}}}}\\ \\ \\:\implies\sf 2(0.5 \times 2.5 + 2.5 \times 1.5 + 1.5 \times 0.5)\\ \\ \\ :\implies\sf 2(1.25 + 3.75 + 0.75)\\ \\ \\ :\implies\sf 2(5.75)\\ \\ \\:\implies{\underline{\boxed{\frak{{11.5\:m^2}}}}}\pink\bigstar\\ \\\end{gathered}\end{gathered}$

$\therefore{\underline{\sf{ Total\:surface\:area\:of\:cuboid\:is\: \textsf{\textbf{11.5m²}}.}}}$

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||TheUnknownStar||