Question

The present shown below is a cube. Find the surface area.

Answer 1

SURFACE AREA

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`\large \sf \underline{Direction:}`

• The present shown below is a cube. Find the surface area.

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`\large \sf \underline{Answer:}`

`\qquad \qquad \huge \bold{2,400cm^(2) }`

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`\large \sf \underline{Solution:}`

`:\sf{SA=2(lw)+2(wh)+2(hl)}`

`:\sf{SA=2(20)(20)+2(20)(20)+2(20)(20)}`

`:\sf{SA=2(400)+2(400)+2(400)}`

`:\sf{SA=800+800+800}`

`\therefore\sf\underline{SA = \pmb{2,400cm^(2) }}`

Hence, the surface area that you are looking for is 2, 400cm².

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Answer 2

SA = 2,400 cm²

Explanation:

Surface Area (SA) of a cuboid: 2(lw) + 2(wh) + 2(hl)

SA = 2(lw) + 2(wh) + 2(hl)

• l = 20 cm
• w = 20 cm
• h = 20 cm

Substitute the values above and multiply:

SA = 2(lw) + 2(wh) + 2(hl)

SA = 2(20)(20) + 2(20)(20) + 2(20)(20)

SA = 2(400) + 2(400) + 2(400)

SA = 800 + 800 + 800

SA = 2,400 cm²

Final answer: 2,400 cm²

Hope this helps!