Question

The volume of a wooden block having dimensions 5 cm x 3 cm x 2 cm is * 1 point 28 cubic cm 31 cubic cm 30 cubic cm 32 cubic cm​

Answer 1

Answer:

Given:

Dimensions of block = 15 cm × 10 cm × 3.5 cm

Radius = 0.5 cm

Depth = 2.1 cm

Volume of wood left in pen stand = Volume of the block – Volume of 4 cones …(1)

Volume of the block = 15 cm × 10 cm × 3.5 cm

⇒ Volume of the block = 525 cm3

Volume of 4 cones = 4 × Volume of 1 cone

⇒Volume of 4 cones = 4 × (22 × 0.5 × 0.5×0.1)

⇒Volume of 4 cones = 4 × 0.55

⇒Volume of 4 cones = 2.2 cm3

Putting them in (1),

Volume of wood left in pen stand = 30 cmm3 – 2.2 cm3

⇒ Volume of wood left in pen stand = 30 cm3

Hence, Volume of wood left in pen stand = 30 cm3

Answer 2

Answer:

30 cubical boxes are formed