Mensuration
Presentation
•
Mathematics
•
8th Grade
•
Hard
Karthika Nair
FREE Resource
4 Slides • 4 Questions
1
Mensuration
2
S . No | Shape | Area |
|---|---|---|
01 | Rectangle | l x b |
02 | Square | a2 |
03 | Triangle | 1/2 x b x h |
04 | Parallelogram | b x h |
05 | Circle | πr2 |
06 | Trapezium | 1/2 x h x ( a + b ) |
07 | General quadrilateral | 1/2 x d x ( h |
08 | Rhombus | 1/2 x d |
3
Open Ended
1. A square and a rectangular field with measurements as given in the figure have the same perimeter. Which field has a larger area?
4
Open Ended
2. Mrs. Kaushik has a square plot with the measurement as shown in the figure. She wants to construct a house in the middle of the plot. A garden is developed around the house. Find the total cost of developing a garden around the house at the rate of ₨.55 per m2 .
5
Solid Shapes
6
S . No | Solid Shape | T.S.A | L.S.A | Volume |
|---|---|---|---|---|
1 | Cube | 6a2 | 4a2 | a3 |
2 | Cuboid | 2(lb+bh+lh) | 2(l+b)h | lbh |
3 | Cylinder | 2πr(r+h) | 2πrh | πr2h |
7
Open Ended
7. A closed cylindrical tank of radius 7 m and height 3 m is made from a sheet of metal. How much sheet of metal is required?
8
Open Ended
Find the side of a cube whose surface area is 600 cm2 .
Mensuration
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