maths

posted by .

A paving block is is in the shape of a prism, the area of it' cross section being 154cm^2.The prism i 17cm long ad the material from whih it is made has a density of 2.2g/cm^3. Calculate the mass of the paving block.

Please can you tell me the method aswell

thanks

  • maths -

    Volume of prism
    = cross-sectional area * height
    = 154 cm2 * 17 cm
    = 2618 cm3
    Density = 2.2 g / cm3

    Mass
    = volume * density
    = 2618 cm3 * 2.2 g / cm3

    = 5759.6 g
    = 5760 g (approx.)

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. maths

    a prism has a cross section area of 8mm2 and a volume of 224mm3 what is the length of the prism
  2. maths

    a prism has a cross sectional area of 8mm2 and a volume of 224mm3 calculate the length of the prism thank you so much for your help
  3. geometry

    You have a rectangular prism. The center section has been removed. The base of the original prism is 6in wide and 8in long. The height of the prism is 10in. What is the total exposed surface are of the new prism?
  4. mathematics

    not drawn to scale, shows a prism of length 30cm. the cross section wyxz is a square with area 144cm^2 (i) the volume in cm^3. of the prism
  5. Prisms

    The solid prism has constant cross section which is a trianle sides 8cm, 7cm and 7cm long respectively. If the lenght of the prism is 9cm, calculate the volume of the prism.
  6. math

    A plane cuts through a rectangular prism. The plane is parrallel to the base of the rectangular prism. What is the shape of cross section?
  7. Physics

    1. The total length of a spring is 0.25 m. What it is unstretched and 0.30 m when a force of 17.82 N is applied to it. What will be the length when 26.72 N is applied to it?
  8. Math

    Hi, so I am supposed to calculate the volum of my prism as if it were a prism. I know I'm supposed to to do Volum=1/3* area of the base* height. But I get confused can you please help me. These are the measurements of my prism. Length=5cm …
  9. Math 100

    A triangular prism measures 81 cm long. Its cross section is an equilateral traingle with a base of 16 centimeters and a height of 14 cm. Find the surface area of this triangular prism.
  10. maths

    the base of a given triangular prism is a right angled triangle with AB=5cm,AC=12cm and the height of the prism =20cm. Angle A=90 degrees so calculate the surface area of the prism

More Similar Questions