c) A rectangular metallic block is 50 cm x 20 cm x 8 cm. If it is melted and re-formed into a cubical block, find the length of the edge of the cube.

20cm

Step-by-step explanation:

Volume of rectangular block = volume of cube

50 × 20 × 8 = X × X × X

8000³ = x³

x = 20cm

Therefore, length of the edge of the cube is 20cm

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8