Question

find the edge of a cube whose surface area is 2400 metre square​

Answer 1

Answer:

Step-by-step explanation:

So, it's given that area=2400cm^2

Area=6a^2

2400=6×a×a

2400/6=a×a

400=a×a

a=√400

a=20 cm

W. K. T length of the diagonal of a cube=√3 ×a

So, the length of a diagonal =√3×20

=20√3 cm