Question

Find the total surface area of a cube whose volume is 343 cm3
cube

Answer 1

V of cube= 343
Length of side= cube root of V
= cube root of 343
= 7cm

SA= 6(side)^2
= 6 × 7^2
= 6× 49
= 294 cm^2


-----×------ -----×------ -----×------ -----×------

Answer 2

$\fontsize{18}{10}{\textup{\textbf{Total surface are = 294 cm}}}^2.$

Step-by-step explanation:

Let the length of a side of the given cube be 'l' cm.

Then, according to the given information, we have

$\textup{Volume of the cube}=343\\\\\Rightarrow l^3=343\\\\\Rightarrow l^3=7^3\\\\\Rightarrow l=7.$

Therefore, the total surface are of the cube is given by

$S.A.=6l^2=6\times7^2=6\times49=294.$

Thus, the required surface area of the cube is 294 cm².

Learn more#

Question : Find the total surface area of a cube having length of the edges is 10 cm.

Link : https://brainly.in/question/6999298.