A cylindrical rod of height 10 m and radius 7m is melted into 7 identi

1.	A cylindrical rod of height 10 m and radius 7m is melted into 7 identical cylindrical pistons of radius 14m and height 514 m.Decide whether or not the following assertions are correct:(1) The volume of the cylindrical rod is equal to the sum of the volume of all 7 pistons.(2) The total surface area of the cylindrical rod is equal to the sum of total surface area of the cylindrical piston.
Answer» A cylindrical rod of height 10 m and radius 7m is melted into 7 identical cylindrical pistons of radius 14m and height $\frac{5}{14}$ m. Decide whether or not the following assertions are correct: (1) The volume of the cylindrical rod is equal to the sum of the volume of all 7 pistons. (2) The total surface area of the cylindrical rod is equal to the sum of total surface area of the cylindrical piston.

A cylindrical rod of height 10 m and radius 7m is melted into 7 identical cylindrical pistons of radius 14m and height 514 m.Decide whether or not the following assertions are correct:(1) The volume of the cylindrical rod is equal to the sum of the volume of all 7 pistons.(2) The total surface area of the cylindrical rod is equal to the sum of total surface area of the cylindrical piston.

Answer»

A cylindrical rod of height 10 m and radius 7m is melted into 7 identical cylindrical pistons of radius 14m and height $\frac{5}{14}$ m.

Decide whether or not the following assertions are correct:

(1) The volume of the cylindrical rod is equal to the sum of the volume of all 7 pistons.

(2) The total surface area of the cylindrical rod is equal to the sum of total surface area of the cylindrical piston.