Two cubes of side b are joined, find the ratio of surface area of cube to the cuboid formed
Answers
Answered by
2
Step-by-step explanation:
The total surface area of a cube of
side b = 6b^2
Now, the dimesions of new cuboid formed by joining two cube of side b
length = l = 2b
breadth =b = b
height = h = b
aurface area = 2(lb + bh+ hl)
= 2(2b*b + b*b +b*2b)
= 2( 2b^2 + b^2 + 2b^2 )
= 2 ( 5b^2)
= 10b^2
Now
ratio = 6b^2/10 b^2
=6/10
=3/5
= 3:5
Similar questions