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Surface Area An...

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  • Question 1
    1 / -0

    A hollow iron pipe is 42 cm long and its inner radius is 7 cm. If the thickness of the pipe is 1.5 cm and iron weights 10 gm/cm3, find the mass of the pipe (in kg).

  • Question 2
    1 / -0

    A tank 12 m long and 8 m wide contains water up to a height of 2.5 m. The total area of the wet surface is

  • Question 3
    1 / -0

    A wooden box measures externally 4 m × 3 m × 2 m. The thickness of all four sides is 5 cm. If the capacity of the box is 18.096 m3, find the thickness of the bottom.

  • Question 4
    1 / -0

    A cylinder is formed by folding a rectangular tin sheet along its length, and the dimensions of the sheet are 44 cm by 20 cm. What is the curved surface area of the cylinder?

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