Question

A string when wound on the exerior four walls
of a cube of side a cm starting at point C and
ending at point d. Find the length of string in
cm.​

Answer 1

Step-by-step explanation:

length of string =n

side of cube =

′

a

′

cm

no. of turns =4

By one as

{4(4a)}

2

=n

2

−a

2

256a

2

=n

2

−a

2

256a

2

+a

2

=n

2

257a

2

=n

2

a

2

=

257

n

2

a= ✓

257

n✓÷257

Hope it help you