Question

a cuboid shaped box with the dimensions 1cm×5cm×9cm is melted to form another cuboid whose breath is 5cm. find the length and height of cuboid formed if its length and height are equal.​

Answer 1

answer:

volume= l*b*h

           =1*5*9

l=1cm

b=5cm

h=9cm

breadth of new cuboid is 5cm

so length and height are 1 and 9 cm respectively

Answer 2

Step-by-step explanation:

v. of cuboid = l*b*h

= 1*5*9

= 45 cm^3

to find - length and height

breadth of new cuboid = 5 cm

v. of cuboid = v. of new cuboid (since it is recasted)

so , 45 = l * 5 * h

45 = lh * 5

lh = 9

since l and h are equal

therefore

l^2 = 9

so l = h = 3 cm