Question

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

Answer 1

Answer:

SA = 2,400 cm²

Step-by-step 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!

Answer 2

SURFACE AREA

================================

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

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

================================

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

$\qquad \qquad \huge \bold{2,400cm^{2} }$

================================

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

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

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

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

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

$\therefore\sf\underline{SA = \pmb{2,400cm^{2} }}$

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

================================