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lubasha [3.4K]
3 years ago
6

Find the surface area of a cuboid

Mathematics
2 answers:
olga55 [171]3 years ago
5 0

Answer:

143.52 cm²

Step-by-step explanation:

The formula for the surface area of a cuboid is SA=2lw+2lh+2hw.

2lw+2lh+2hw

2(7.2)(3.1)+2(7.2)(4.8)+2(4.8)(3.1)

Multiply.

44.64+69.12+29.76

Add.

= 143.52

The total surface area of the cuboid is 143.52 cm².

devlian [24]3 years ago
5 0

Answer:

<h2><em>1</em><em>4</em><em>3</em><em>.</em><em>5</em><em>2</em><em> </em><em>cm^</em><em>2</em></h2>

<em>Sol</em><em>ution</em><em>,</em>

<em>Length</em><em>(</em><em>l</em><em>)</em><em>=</em><em>7</em><em>.</em><em>2</em><em> </em><em>cm</em>

<em>Breadth</em><em>(</em><em>b</em><em>)</em><em>=</em><em>3</em><em>.</em><em>1</em><em> </em><em>cm</em>

<em>Height(</em><em>h</em><em>)</em><em>=</em><em>4</em><em>.</em><em>8</em><em> </em><em>cm</em>

<em>Now</em><em>,</em>

<em>surface \: area \: of \: cuboid \\  = 2(l \times b + b \times h + h \times l) \\  = 2(7.2 \times 3.1 + 3.1 \times 4.8 + 4.8 \times 7.2) \\  = 2(22.32 + 14.88 + 34.56) \\  = 2(71.76) \\  = 143.52 \:  {cm}^{2}</em>

<em>hope</em><em> </em><em>this</em><em> </em><em>helps</em><em>.</em><em>.</em><em>.</em>

<em>Good</em><em> </em><em>luck</em><em> on</em><em> your</em><em> assignment</em><em>.</em><em>.</em>

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