Question

2cubes of side 3cm each are joint find the volume and total surface area of the solid...​

Answer 1

Answer:

Volume of the cube is 54 cm³ And The total Surface Area is 90 cm².

Step-by-step explanation:

Volume of Each cube = x³

Vol. = 3³

        = 27 cm³

Since the two cubes are joined side by side ,

Actual volume = 27 + 27 = 54 cm³

After joining the wo cubes it forms a cuboid of ,

Length = 3 + 3 = 6 cm

Breadth = 3 cm

Height = 3 cm

Total surface Area of cuboid = 2 ( lb + bh + lh )

                                                 = 2  [ ( 6 x 3 ) + ( 3 x 3 ) + ( 6 x 3 ) ]

                                                  = 2 [ 18 + 9 + 18 ]

                                                   =  2 x 45 = 90 cm ²