Q. 24.3( 256 Votes )

The inner diamete

Answer :

Inner radius (r1) = 24/2 = 12 cm

Outer radius (r2) = 28/2 = 14 cm

Height (h) = Length = 35 cm

Volume = π (r22 – r12) h

= 22/7 × (142 – 122) × 35

= 110 × 52

= 5720 cm3

Mass of 1 cm3 wood = 0.6 g

Mass of 5720 cm3 wood = (5720 × 0.6) g

= 3432 g

= 3.432 kg

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