Saved Bookmarks
| 1. |
(ii) cost of the canvas required to make the lellt,What length of tarpaulin 3 m wide will be required to make conical tent of height 8 mand base radius 6 m? Assume that the extra length of material that will be required forstitching margins and wastage in cutting is approximately 20 cm (Use π = 314). |
|
Answer» Given a conical tent with Height ( h ) = 8m Radius ( r ) = 6m So, its length = l2= h2+ r2 = l2= ( 8 )2m + ( 6 )m2 = l2= 64m + 36m = l2= 100m = l = 10m Curved surface area of the cone = TTrl = 3.14 x 6m x 10m = 188.4 cm2 The extra length of material that will be required for stiching margins and wastages in cutting is approx 20 cm = 0.2m So, its length = l - 0.2m and its width = 3m area of sheet = CSA of tent so the area of the trapaulln = l x b = ( l - 0.2m ) x 3m = 188.4m2 = l - 0.2m = 62.8m2 = l = 63m Therefore, length of the trapaulin sheet required is 63m. Hit like if you find it useful! |
|