naa a22 4500 510784623 CHVBK 20180411083258.0 cr unu---uuuuu 180411e20130701xx s 000 0 eng 10.1007/s12045-013-0084-5 doi (NATIONALLICENCE)springer-10.1007/s12045-013-0084-5 Madahar Keerti Panjab University, Chandigarh, India aut Calculus and geometry [Elektronische Daten] [Keerti Madahar] In this article we compute volume and surface area of the torus, volume of a slice of a 3-ball. Besides this we discuss some interesting facts like ‘derivative of the area of a circle with respect to its radius is its perimeter, derivative of the volume of the sphere with respect to its radius is its surface area and derivative of the volume of the torus with respect to the radius of its meridian circle is its surface area'. Indian Academy of Sciences, 2013 Resonance Springer India 18/7(2013-07-01), 654-661 0971-8044 18:7<654 2013 18 12045 https://doi.org/10.1007/s12045-013-0084-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12045-013-0084-5 text/html Onlinezugriff via DOI NATIONALLICENCE 100 1- Madahar Keerti Panjab University, Chandigarh, India aut NATIONALLICENCE 773 0- Resonance Springer India 18/7(2013-07-01), 654-661 0971-8044 18:7<654 2013 18 12045 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer