# maths-surface area

Cylindrical groove is made in a cylindrical piece of wood of length 17.5cm. The groove is filled with graphite and the cylindrical graphite block is of same length as that of wooden piece. If the diameter of the graphite cylinder is 3mm and outer diameter of the wooden cylinder is 10mm. find the volume of the wood and volume of the graphite used

1. 👍
2. 👎
3. 👁
4. ℹ️
5. 🚩
1. No

1. 👍
2. 👎
3. ℹ️
4. 🚩

## Similar Questions

1. ### maths

An open rectangular box has internal dimensions 2m long, 20cm wide and 22.5cm deep. If the box is made of wood 2.5cm thick, calculate the volume of the wood in cm cube.

2. ### Math

A cylindrical tin can has a radius of 4.5cm and a height of 5 cm (a)What is the surface area of the can (b)What is its volume? (c)What is the cans capacity could somebody please answer this question so i can get past with math

3. ### Mathematics

A cylindrical pipe 28m long. Its internal radius is 3.5cm and external radius is 5cm. Calculate the volume in cm of metal used in making the pipe (2) the volume of water in metres that the pipe can hold.

4. ### geometry

A ball of diameter 20 cm fits exactly inside a cylindrical container. The maximum volume of liquid which can be poured into the cylindrical container when empty is ________ cm3. [π=3.14]

A rectangular piece of paper with perimeter 100 cm is to be rolled to form a cylindrical tube. Find the dimensions of the paper that will produce a tube with maximum volume. I have made it up to getting an equation for V(w).

2. ### math

A piece of wood is divided in 3 pieces in the ratio 3:4:2. The length of the longest piece is 72. Calculate the length of the piece of wood. Answer 162

3. ### Maths

The capacity of a cylindrical tank is 32l .It is 4/5 full of water .A quarter of this volume is poured into a pail .How much water is left in the cylindrical tank

4. ### Geometry

Jake has two similar cylindrical pipes. The radius of the first cylindrical pipe is 5 cm. The circumference of the second cylindrical pipe is 20π cm. The volume of the second cylindrical pipe is how many times greater than the

1. ### math

the external dimensions of a closed box are 8cm by 5cm by 4cm. given that the thickness of the wood of which it is made is 0.5cm, find the volume of the wood used to make it.

2. ### Math

The volume of the solid obtained by rotating the region bounded by y=e^x, y=Inx, x=1, and x=2 about the line y-axis can be computed using the method of cylindrical shells. Using the method of cylindrical shells find the volume.

3. ### Mathematics

Calculate the volume of a cylindrical steel bar which is 8cm long and 3.5cm in diameter

4. ### mathematics

A cylindrical container is 15cm long. It has a radius of 7 cm. What is the volume of the cylindrical container?