two cubes of side 4 cm are fixed together. Find the total surface area

1.	two cubes of side 4 cm are fixed together. Find the total surface area of the newsolid formed
Answer» When the two cubes are fixed together, the resulting solid is a cuboid. Length of the cuboid,= 2× edge of the cube = 24 = 8 cm Breadth of the cube = 1×edge of the cube = 4 cm Height of the cube = 1 × edge of the cube = 4 cm Total surface area of the cuboid = 2(LB + BL + LH) ⇒ 2(84 + 44 + 48) ⇒ 2(32 + 16 + 32) ⇒ 280 ⇒ 160 sq cm So, the total surface area of the cuboid is 160 sq cm Thanks for the help

two cubes of side 4 cm are fixed together. Find the total surface area of the newsolid formed

Answer»

When the two cubes are fixed together, the resulting solid is a cuboid.

Length of the cuboid,= 2× edge of the cube = 2*4 = 8 cm

Breadth of the cube = 1×edge of the cube = 4 cm

Height of the cube = 1 × edge of the cube = 4 cm

Total surface area of the cuboid = 2*(LB + BL + LH)

⇒ 2*(8*4 + 4*4 + 4*8)

⇒ 2*(32 + 16 + 32)

⇒ 2*80

⇒ 160 sq cm

So, the total surface area of the cuboid is 160 sq cm

Thanks for the help