mensuration class 9.ppt
Download as PPTX, PDF6 likes8,167 views
This document provides information about common plane and 3D figures including their names, formulas for calculating area, perimeter/surface area, and volume. For plane figures it covers square, rectangle, trapezium, circle, and parallelogram. For 3D figures it covers cube, cuboid, cylinder, sphere, and cone. It lists the key formulas for calculating measurements of each shape.
1 of 16
Downloaded 246 times
More Related Content
What's hot (20)
Ad
Viewers also liked (20)
Ad
Similar to mensuration class 9.ppt (20)
Recently uploaded (20)
mensuration class 9.ppt
- 1. MENSURATION
- 2. LIST OF THE FIGURE PLANE FIGURE 3D FIGURE 1. SQURE 1. CUBE 2. RECTANGLE 2. CUBOID 3. TRAPEZIUM 3. CYLINDER 4. CIRCLE 4. SPHERE 5. PARALLEOGRAM 5. CONE
- 3. PLANE FIGURE 1. Square 2. Rectangle 3. Trapezium 4. Circle 5. Parallelogram
- 4. Square Area of a square = side x side Perimeter of a square = 4 x side
- 5. Rectangle Area of a rectangle = l x b l = length b = breath Perimeter of a rectangle = 2( l + b )
- 6. Trapezium Area of a trapezium = ½ (a+ b) x h a = length b = breath h = height
- 7. Circle Area of a circle = πr2 Circumference of a circle = 2πr
- 8. Parallelogram Area of a parallelogram = base x height
- 9. 3D FIGURE 1. Cube 2. Cuboids 3. Cylinder 4. Sphere 5. Cone
- 10. Cube Surface area of a cube = 6a2 Volume of a cube = a3 a= edge of the cube
- 11. Cuboids Surface area of a cuboids =2 x(lb +bh+ hl) Volume of cuboids = area of base x height = l x b x h l = length b= breath h= height
- 12. Cylinder Curved surface area of a cylinder =2 πrh Total surface area of a cylinder =2 πr(r+h) Volume of a cylinder = base area x height = πr2 h
- 13. Sphere Surface area of a sphere = 4πr2 r = radius of sphere Volume of a sphere = 4/3πr3
- 14. Cone Curved surface area of a cone = πrl Total surface area of a cone = πr(l+r) Volume of a cone = 1/3π r3
- 15. THANKYOU
- 16. Made by – Satakshi senger Summated by – Satakshi senger Received by – Aishwini Mam