16. How many cubes of 5 cm can be cut out from acuboid of 25 cm x 19 c

1.	16. How many cubes of 5 cm can be cut out from acuboid of 25 cm x 19 cm x 10 cm?17. A fish tank of length 80 cm and breadth 50 cmcontains 120 dm^3 of water. Find its height.18. The volume of a cube is 8000 cm^2. Find ts totalsurface area.
Answer» 18)we know that ;volume of cube = a³andsurface area of cube = 6a² where a is the side of cube. here,According to given= a³ = 8000 cm³= a = 20 cm now,surface area of cube = 6a² = 6 * 20² 6 * 400 = 2400 cm² 16)suppose n cubes can be made out of this dimensionso n * 125= 251910n= 4750/125=38 thnx bro

16. How many cubes of 5 cm can be cut out from acuboid of 25 cm x 19 cm x 10 cm?17. A fish tank of length 80 cm and breadth 50 cmcontains 120 dm^3 of water. Find its height.18. The volume of a cube is 8000 cm^2. Find ts totalsurface area.

Answer»

18)we know that ;volume of cube = a³andsurface area of cube = 6a²

where a is the side of cube.

here,According to given= a³ = 8000 cm³= a = 20 cm

now,surface area of cube = 6a² = 6 * 20² 6 * 400 = 2400 cm²

16)suppose n cubes can be made out of this dimensionso n * 125= 25*19*10n= 4750/125=38

thnx bro