The whole surface of a cubic is 216 cm-2- The volume of this will be108 cm-354 cm-3432 cm-3216 cm-3

Question

Toppr Admin · Accepted Answer

Total surface area-216cm2Total surface area-6a2-x2234-6a2-216-x21D2-a2-2166-36-x21D2-a-x221A-6-x21D2-a-6cmVolume of the cube -a3-x21D2-Volume-6-3-x21D2-216cm3

The whole surface of a cubic is 216 cm' $^{2}$ . The volume of this will be
108 cm $^{3}$
54 cm $^{3}$
432 cm $^{3}$
216 cm $^{3}$

Total surface area $= 216 c m^{2}$
Total surface area= $6 a^{2}$
$∴ 6 a^{2} = 216$
$\Rightarrow a^{2} = \frac{216}{6} = 36$
$\Rightarrow a = \sqrt{6}$
$\Rightarrow a = 6 c m$

Volume of the cube $= a^{3}$
$\Rightarrow V o l u m e = (6)^{3} \Rightarrow 216 c m^{3}$

The whole surface of a cubic is 216 cm'2. The volume of this will be108 cm354 cm3432 cm3216 cm3

Total surface area=216cm2Total surface area=6a2∴6a2=216⇒a2=2166=36⇒a=√6⇒a=6cmVolume of the cube =a3⇒Volume=(6)3⇒216cm3

The whole surface of a cubic is 216 cm' $^{2}$ . The volume of this will be
108 cm $^{3}$
54 cm $^{3}$
432 cm $^{3}$
216 cm $^{3}$

Total surface area $= 216 c m^{2}$
Total surface area= $6 a^{2}$
$∴ 6 a^{2} = 216$
$\Rightarrow a^{2} = \frac{216}{6} = 36$
$\Rightarrow a = \sqrt{6}$
$\Rightarrow a = 6 c m$

Volume of the cube $= a^{3}$
$\Rightarrow V o l u m e = (6)^{3} \Rightarrow 216 c m^{3}$