A rectangular paper of width 8cm and length 22cm rolled along it width and a cylinder is formed. On the above Intimation, Solve the question given below |
The volume of cylinder is |
98 cm3 49π cm3 49 cm3 98π cm3 |
98π cm3 |
The correct answer is Option 2: 98π cm3
So, 2πr = 22 r = 22 / (2π) Using π = 22/7: r = 22 / (2 × 22/7) Step 2: Volume of cylinder Volume = πr²h = (22/7) × (3.5)² × 8 (3.5)² = 12.25 Volume = (22/7) × 12.25 × 8 = 308 cm³ Since 308=98×π308 = 98 × π308=98×π when expressed with π: Volume = 98π cm³ |