If the length, breadth and height of a rectangular parallelepiped are $a, b, c$, the area of its whole surface is which

Question

If the length, breadth and height of a rectangular parallelepiped are $a, b, c$, the area of its whole surface is which of the following?

Accepted Answer

$2(ab + bc + ca)$

Answer

$abc$

Answer

$a^2 + b^2 + c^2$

Answer

$\sqrt{a^2+b^2+c^2}$

If the length, breadth and height of a rectangular parallelepiped are a,b,ca, b, ca,b,c, the area of its whole surface is which of the following?