# maths

posted by .

from a rectangular piece of metal sheet of length and breadth 1.60 m and 80 cm respectively, 3 circular sheets of 20 cm radius are cut out. what area of metal is left?

• maths -

160*80 - 3(pi*20^2)

## Similar Questions

1. ### Math

A rectangular piece of metal with 4 equally sized circular holes have a diameter of 12 cm cut from it. Calculate the area of metal after the holes have been cut out 339.12cm squared Rectangle formula : l x w Circle : π × r2
2. ### Math

A rectangular piece of metal with 4 equally sized circular holes have a diameter of 12 cm cut from it. Calculate the area of metal after the holes have been cut out 4060.88cm ?
3. ### Maths

a rectangular piece of paper has length=14cm and breadth=12cm. A square piece of paper of perimeter 24 cm is cut off from it. what is the area of the piece of paper left
4. ### Algebra

One more rectangular-shaped piece of metal siding needs to be cut to cover the exterior of a pole barn. The area of the piece is 30 ft². The length is 1 less than 3 times the width. How wide should the metal piece be?
5. ### Algebra

A box is to be formed from a rectangular piece of sheet metal by cutting squares measuring 5 inches on a side and then folding the sides. The piece of sheet metal is twice as long as it is wide. If the volume of the box is to be 1760 …
6. ### math

A rectangular and two circular cut-outs of metal sheet of negligible thickness are used to make a closed cylinder. The rectangular cut-out ha a height of 18 cm. Each circular cut-out has a radius of 5.2 cm. Calculate in terms of area …
7. ### Maths

A square sheet of metal 25metres side.How many circular disc of 3metres can be cut off from the metal sheet?
8. ### math

A rectangular piece of sheet metal is 4 ft longer than it is wide. (See the illustration.) The area of the piece of sheet metal is 96 ft2. Find its length and width
9. ### Maths

a rectangular metal sheet of length 30cm and breadth 25cm is to be made into an open box of base area 300cm by cutting out equal squares from each of the four corners and then bending up the edges find the length and the side cut from …
10. ### physics

A piece of uniform sheet metal measures 25 cm by 25 cm. If a circular piece with a radius of 5.0 cm is cut from the center of the sheet, where is the sheet’s center of mass now?

More Similar Questions