Question

The length of the side is $3.9$ ft. Find the surface area of a cube .

• A. $41.82{ft}^2$
• B. $94.16{ft}^2$
• C. $91.26{ft}^2$
• D. $40.41{ft}^2$

Answer 1

Answer: (C)

$91.26{ft}^2$

Given, length of side $=.9$ ft

Total surface area of a cube $=$ $6\times$ side${}^2$
$=6\times 3.9\times 3.9$
$=91.26{ft}^2$