A WELL 14 M IS DEEP IS 2MIN RADIUS . FIND THE RADIUS. FIND THE COST OF CEMENTING THE INNER CURVED SURFACE AT THE RATE OF RS . 2 PER METRE SQUARE .
THE TOTAL SURFACE AREA OF A RIGHT CIRCULAR CYLINDER 231 CM2. IF THE CURVED SURFACE AREA 2/3 RD OF THE TOTAL SURFACE AREA ,DETERMINE THE RADIUS OF ITS BASE AND ITS HEIGHT .
HOW MANY SQUARE METRES OF CANVAS IS REQUIRED FOR A CONICAL TENT WHOSE HEIGHT IS 3.5 M AND THE RADIUS WHOSE BASE IS 12 M ?
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